977 lines
30 KiB
Go
977 lines
30 KiB
Go
package tmpl
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"log"
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"path/filepath"
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"reflect"
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"strconv"
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"strings"
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"text/template/parse"
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)
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// TODO: Turn this file into a library
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var textOverlapList = make(map[string]int)
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type VarItem struct {
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Name string
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Destination string
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Type string
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}
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type VarItemReflect struct {
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Name string
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Destination string
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Value reflect.Value
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}
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type CTemplateConfig struct {
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Minify bool
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Debug bool
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SuperDebug bool
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SkipHandles bool
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}
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// nolint
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type CTemplateSet struct {
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templateList map[string]*parse.Tree
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fileDir string
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funcMap map[string]interface{}
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importMap map[string]string
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TemplateFragmentCount map[string]int
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Fragments map[string]int
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fragmentCursor map[string]int
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FragOut string
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varList map[string]VarItem
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localVars map[string]map[string]VarItemReflect
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hasDispInt bool
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localDispStructIndex int
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langIndexToName []string
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stats map[string]int
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previousNode parse.NodeType
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currentNode parse.NodeType
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nextNode parse.NodeType
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//tempVars map[string]string
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config CTemplateConfig
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doImports bool
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expectsInt interface{}
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}
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func (c *CTemplateSet) SetConfig(config CTemplateConfig) {
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c.config = config
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}
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func (c *CTemplateSet) GetConfig() CTemplateConfig {
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return c.config
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}
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func (c *CTemplateSet) Compile(name string, fileDir string, expects string, expectsInt interface{}, varList map[string]VarItem, imports ...string) (out string, err error) {
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if c.config.Debug {
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fmt.Println("Compiling template '" + name + "'")
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}
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c.fileDir = fileDir
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c.doImports = true
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c.funcMap = map[string]interface{}{
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"and": "&&",
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"not": "!",
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"or": "||",
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"eq": true,
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"ge": true,
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"gt": true,
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"le": true,
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"lt": true,
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"ne": true,
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"add": true,
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"subtract": true,
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"multiply": true,
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"divide": true,
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"dock": true,
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"lang": true,
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"scope": true,
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}
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c.importMap = map[string]string{
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"net/http": "net/http",
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"./common": "./common",
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}
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if len(imports) > 0 {
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for _, importItem := range imports {
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c.importMap[importItem] = importItem
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}
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}
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c.varList = varList
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c.hasDispInt = false
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c.localDispStructIndex = 0
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c.stats = make(map[string]int)
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c.expectsInt = expectsInt
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holdreflect := reflect.ValueOf(expectsInt)
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res, err := ioutil.ReadFile(fileDir + "overrides/" + name)
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if err != nil {
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c.detail("override path: ", fileDir+"overrides/"+name)
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c.detail("override err: ", err)
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res, err = ioutil.ReadFile(fileDir + name)
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if err != nil {
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return "", err
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}
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}
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content := string(res)
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if c.config.Minify {
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content = minify(content)
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}
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tree := parse.New(name, c.funcMap)
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var treeSet = make(map[string]*parse.Tree)
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tree, err = tree.Parse(content, "{{", "}}", treeSet, c.funcMap)
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if err != nil {
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return "", err
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}
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c.detail(name)
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out = ""
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fname := strings.TrimSuffix(name, filepath.Ext(name))
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c.templateList = map[string]*parse.Tree{fname: tree}
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varholder := "tmpl_" + fname + "_vars"
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c.detail(c.templateList)
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c.localVars = make(map[string]map[string]VarItemReflect)
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c.localVars[fname] = make(map[string]VarItemReflect)
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c.localVars[fname]["."] = VarItemReflect{".", varholder, holdreflect}
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if c.Fragments == nil {
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c.Fragments = make(map[string]int)
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}
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c.fragmentCursor = map[string]int{fname: 0}
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c.langIndexToName = nil
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// TODO: Is this the first template loaded in? We really should have some sort of constructor for CTemplateSet
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if c.TemplateFragmentCount == nil {
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c.TemplateFragmentCount = make(map[string]int)
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}
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out += c.rootIterate(c.templateList[fname], varholder, holdreflect, fname)
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c.TemplateFragmentCount[fname] = c.fragmentCursor[fname] + 1
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var importList string
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if c.doImports {
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for _, item := range c.importMap {
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importList += "import \"" + item + "\"\n"
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}
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}
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var varString string
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for _, varItem := range c.varList {
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varString += "var " + varItem.Name + " " + varItem.Type + " = " + varItem.Destination + "\n"
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}
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fout := "// +build !no_templategen\n\n// Code generated by Gosora. More below:\n/* This file was automatically generated by the software. Please don't edit it as your changes may be overwritten at any moment. */\n"
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fout += "package main\n" + importList + "\n"
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fout += "var " + fname + "_tmpl_phrase_id int\n\n"
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fout += "// nolint\nfunc init() {\n"
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if !c.config.SkipHandles {
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fout += "\tcommon.Template_" + fname + "_handle = Template_" + fname + "\n"
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fout += "\tcommon.Ctemplates = append(common.Ctemplates,\"" + fname + "\")\n\tcommon.TmplPtrMap[\"" + fname + "\"] = &common.Template_" + fname + "_handle\n"
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}
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fout += "\tcommon.TmplPtrMap[\"o_" + fname + "\"] = Template_" + fname + "\n"
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if len(c.langIndexToName) > 0 {
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fout += "\t" + fname + "_tmpl_phrase_id = common.RegisterTmplPhraseNames([]string{\n"
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for _, name := range c.langIndexToName {
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fout += "\t\t" + `"` + name + `"` + ",\n"
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}
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fout += "\t})\n"
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}
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fout += "}\n\n"
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fout += "// nolint\nfunc Template_" + fname + "(tmpl_" + fname + "_vars " + expects + ", w http.ResponseWriter) error {\n"
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if len(c.langIndexToName) > 0 {
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fout += "var phrases = common.GetTmplPhrasesBytes(" + fname + "_tmpl_phrase_id)\n"
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}
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fout += varString + out + "\treturn nil\n}\n"
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fout = strings.Replace(fout, `))
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w.Write([]byte(`, " + ", -1)
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fout = strings.Replace(fout, "` + `", "", -1)
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//spstr := "`([:space:]*)`"
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//whitespaceWrites := regexp.MustCompile(`(?s)w.Write\(\[\]byte\(`+spstr+`\)\)`)
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//fout = whitespaceWrites.ReplaceAllString(fout,"")
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if c.config.Debug {
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for index, count := range c.stats {
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fmt.Println(index+": ", strconv.Itoa(count))
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}
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fmt.Println(" ")
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}
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c.detail("Output!")
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c.detail(fout)
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return fout, nil
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}
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func (c *CTemplateSet) rootIterate(tree *parse.Tree, varholder string, holdreflect reflect.Value, fname string) (out string) {
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c.detail(tree.Root)
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treeLength := len(tree.Root.Nodes)
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for index, node := range tree.Root.Nodes {
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c.detail("Node:", node.String())
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c.previousNode = c.currentNode
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c.currentNode = node.Type()
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if treeLength != (index + 1) {
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c.nextNode = tree.Root.Nodes[index+1].Type()
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}
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out += c.compileSwitch(varholder, holdreflect, fname, node)
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}
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return out
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}
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func (c *CTemplateSet) compileSwitch(varholder string, holdreflect reflect.Value, templateName string, node parse.Node) (out string) {
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c.detail("in compileSwitch")
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switch node := node.(type) {
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case *parse.ActionNode:
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c.detail("Action Node")
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if node.Pipe == nil {
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break
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}
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for _, cmd := range node.Pipe.Cmds {
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out += c.compileSubswitch(varholder, holdreflect, templateName, cmd)
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}
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case *parse.IfNode:
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c.detail("If Node:")
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c.detail("node.Pipe", node.Pipe)
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var expr string
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for _, cmd := range node.Pipe.Cmds {
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c.detail("If Node Bit:", cmd)
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c.detail("Bit Type:", reflect.ValueOf(cmd).Type().Name())
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expr += c.compileVarswitch(varholder, holdreflect, templateName, cmd)
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c.detail("Expression Step:", c.compileVarswitch(varholder, holdreflect, templateName, cmd))
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}
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c.detail("Expression:", expr)
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c.previousNode = c.currentNode
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c.currentNode = parse.NodeList
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c.nextNode = -1
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out = "if " + expr + " {\n" + c.compileSwitch(varholder, holdreflect, templateName, node.List) + "}"
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if node.ElseList == nil {
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c.detail("Selected Branch 1")
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return out + "\n"
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}
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c.detail("Selected Branch 2")
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return out + " else {\n" + c.compileSwitch(varholder, holdreflect, templateName, node.ElseList) + "}\n"
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case *parse.ListNode:
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c.detail("List Node")
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for _, subnode := range node.Nodes {
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out += c.compileSwitch(varholder, holdreflect, templateName, subnode)
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}
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case *parse.RangeNode:
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return c.compileRangeNode(varholder, holdreflect, templateName, node)
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case *parse.TemplateNode:
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return c.compileSubtemplate(varholder, holdreflect, node)
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case *parse.TextNode:
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c.previousNode = c.currentNode
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c.currentNode = node.Type()
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c.nextNode = 0
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tmpText := bytes.TrimSpace(node.Text)
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if len(tmpText) == 0 {
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return ""
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}
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fragmentName := templateName + "_" + strconv.Itoa(c.fragmentCursor[templateName])
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fragmentPrefix := templateName + "_frags[" + strconv.Itoa(c.fragmentCursor[templateName]) + "]"
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_, ok := c.Fragments[fragmentName]
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if !ok {
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c.Fragments[fragmentName] = len(node.Text)
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c.FragOut += fragmentPrefix + " = []byte(`" + string(node.Text) + "`)\n"
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}
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c.fragmentCursor[templateName] = c.fragmentCursor[templateName] + 1
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return "w.Write(" + fragmentPrefix + ")\n"
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default:
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return c.unknownNode(node)
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}
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return out
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}
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func (c *CTemplateSet) compileRangeNode(varholder string, holdreflect reflect.Value, templateName string, node *parse.RangeNode) (out string) {
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c.detail("Range Node!")
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c.detail(node.Pipe)
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var outVal reflect.Value
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for _, cmd := range node.Pipe.Cmds {
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c.detail("Range Bit:", cmd)
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out, outVal = c.compileReflectSwitch(varholder, holdreflect, templateName, cmd)
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}
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c.detail("Returned:", out)
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c.detail("Range Kind Switch!")
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switch outVal.Kind() {
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case reflect.Map:
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var item reflect.Value
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for _, key := range outVal.MapKeys() {
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item = outVal.MapIndex(key)
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}
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c.detail("Range item:", item)
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if !item.IsValid() {
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panic("item" + "^\n" + "Invalid map. Maybe, it doesn't have any entries for the template engine to analyse?")
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}
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out = "if len(" + out + ") != 0 {\nfor _, item := range " + out + " {\n" + c.compileSwitch("item", item, templateName, node.List) + "}\n}"
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if node.ElseList != nil {
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out += " else {\n" + c.compileSwitch("item", item, templateName, node.ElseList) + "}\n"
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}
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case reflect.Slice:
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if outVal.Len() == 0 {
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panic("The sample data needs at-least one or more elements for the slices. We're looking into removing this requirement at some point!")
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}
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item := outVal.Index(0)
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out = "if len(" + out + ") != 0 {\nfor _, item := range " + out + " {\n" + c.compileSwitch("item", item, templateName, node.List) + "}\n}"
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if node.ElseList != nil {
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out += " else {\n" + c.compileSwitch(varholder, holdreflect, templateName, node.ElseList) + "}"
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}
|
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case reflect.Invalid:
|
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return ""
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}
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|
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return out + "\n"
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}
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func (c *CTemplateSet) compileSubswitch(varholder string, holdreflect reflect.Value, templateName string, node *parse.CommandNode) (out string) {
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c.detail("in compileSubswitch")
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firstWord := node.Args[0]
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switch n := firstWord.(type) {
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case *parse.FieldNode:
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c.detail("Field Node:", n.Ident)
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/* Use reflect to determine if the field is for a method, otherwise assume it's a variable. Variable declarations are coming soon! */
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cur := holdreflect
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var varbit string
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if cur.Kind() == reflect.Interface {
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cur = cur.Elem()
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varbit += ".(" + cur.Type().Name() + ")"
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}
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|
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// ! Might not work so well for non-struct pointers
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skipPointers := func(cur reflect.Value, id string) reflect.Value {
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if cur.Kind() == reflect.Ptr {
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c.detail("Looping over pointer")
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for cur.Kind() == reflect.Ptr {
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cur = cur.Elem()
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}
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c.detail("Data Kind:", cur.Kind().String())
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c.detail("Field Bit:", id)
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}
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return cur
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}
|
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|
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var assLines string
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var multiline = false
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for _, id := range n.Ident {
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c.detail("Data Kind:", cur.Kind().String())
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c.detail("Field Bit:", id)
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cur = skipPointers(cur, id)
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|
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if !cur.IsValid() {
|
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c.error("Debug Data:")
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c.error("Holdreflect:", holdreflect)
|
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c.error("Holdreflect.Kind():", holdreflect.Kind())
|
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if !c.config.SuperDebug {
|
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c.error("cur.Kind():", cur.Kind().String())
|
|
}
|
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c.error("")
|
|
if !multiline {
|
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panic(varholder + varbit + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
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panic(varbit + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
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}
|
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|
|
c.detail("in-loop varbit: " + varbit)
|
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if cur.Kind() == reflect.Map {
|
|
cur = cur.MapIndex(reflect.ValueOf(id))
|
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varbit += "[\"" + id + "\"]"
|
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cur = skipPointers(cur, id)
|
|
|
|
if cur.Kind() == reflect.Struct || cur.Kind() == reflect.Interface {
|
|
// TODO: Move the newVarByte declaration to the top level or to the if level, if a dispInt is only used in a particular if statement
|
|
var dispStr, newVarByte string
|
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if cur.Kind() == reflect.Interface {
|
|
dispStr = "Int"
|
|
if !c.hasDispInt {
|
|
newVarByte = ":"
|
|
c.hasDispInt = true
|
|
}
|
|
}
|
|
// TODO: De-dupe identical struct types rather than allocating a variable for each one
|
|
if cur.Kind() == reflect.Struct {
|
|
dispStr = "Struct" + strconv.Itoa(c.localDispStructIndex)
|
|
newVarByte = ":"
|
|
c.localDispStructIndex++
|
|
}
|
|
varholder = "disp" + dispStr
|
|
varbit = varholder + " " + newVarByte + "= " + varholder + varbit + "\n"
|
|
multiline = true
|
|
} else {
|
|
continue
|
|
}
|
|
}
|
|
if cur.Kind() != reflect.Interface {
|
|
cur = cur.FieldByName(id)
|
|
varbit += "." + id
|
|
}
|
|
|
|
// TODO: Handle deeply nested pointers mixed with interfaces mixed with pointers better
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
varbit += ".("
|
|
// TODO: Surely, there's a better way of doing this?
|
|
if cur.Type().PkgPath() != "main" && cur.Type().PkgPath() != "" {
|
|
c.importMap["html/template"] = "html/template"
|
|
varbit += strings.TrimPrefix(cur.Type().PkgPath(), "html/") + "."
|
|
}
|
|
varbit += cur.Type().Name() + ")"
|
|
}
|
|
c.detail("End Cycle: ", varbit)
|
|
}
|
|
|
|
if multiline {
|
|
assSplit := strings.Split(varbit, "\n")
|
|
varbit = assSplit[len(assSplit)-1]
|
|
assSplit = assSplit[:len(assSplit)-1]
|
|
assLines = strings.Join(assSplit, "\n") + "\n"
|
|
}
|
|
varbit = varholder + varbit
|
|
out = c.compileVarsub(varbit, cur, assLines)
|
|
|
|
for _, varItem := range c.varList {
|
|
if strings.HasPrefix(out, varItem.Destination) {
|
|
out = strings.Replace(out, varItem.Destination, varItem.Name, 1)
|
|
}
|
|
}
|
|
return out
|
|
case *parse.DotNode:
|
|
c.detail("Dot Node:", node.String())
|
|
return c.compileVarsub(varholder, holdreflect, "")
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
case *parse.VariableNode:
|
|
c.detail("Variable Node:", n.String())
|
|
c.detail(n.Ident)
|
|
varname, reflectVal := c.compileIfVarsub(n.String(), varholder, templateName, holdreflect)
|
|
return c.compileVarsub(varname, reflectVal, "")
|
|
case *parse.StringNode:
|
|
return n.Quoted
|
|
case *parse.IdentifierNode:
|
|
c.detail("Identifier Node:", node)
|
|
c.detail("Identifier Node Args:", node.Args)
|
|
out, outval, lit := c.compileIdentSwitch(varholder, holdreflect, templateName, node)
|
|
if lit {
|
|
return out
|
|
}
|
|
return c.compileVarsub(out, outval, "")
|
|
default:
|
|
return c.unknownNode(node)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) compileVarswitch(varholder string, holdreflect reflect.Value, templateName string, node *parse.CommandNode) (out string) {
|
|
c.detail("in compileVarswitch")
|
|
firstWord := node.Args[0]
|
|
switch n := firstWord.(type) {
|
|
case *parse.FieldNode:
|
|
if c.config.SuperDebug {
|
|
fmt.Println("Field Node:", n.Ident)
|
|
for _, id := range n.Ident {
|
|
fmt.Println("Field Bit:", id)
|
|
}
|
|
}
|
|
|
|
/* Use reflect to determine if the field is for a method, otherwise assume it's a variable. Coming Soon. */
|
|
return c.compileBoolsub(n.String(), varholder, templateName, holdreflect)
|
|
case *parse.ChainNode:
|
|
c.detail("Chain Node:", n.Node)
|
|
c.detail("Node Args:", node.Args)
|
|
case *parse.IdentifierNode:
|
|
c.detail("Identifier Node:", node)
|
|
c.detail("Node Args:", node.Args)
|
|
return c.compileIdentSwitchN(varholder, holdreflect, templateName, node)
|
|
case *parse.DotNode:
|
|
return varholder
|
|
case *parse.VariableNode:
|
|
c.detail("Variable Node:", n.String())
|
|
c.detail("Node Identifier:", n.Ident)
|
|
out, _ = c.compileIfVarsub(n.String(), varholder, templateName, holdreflect)
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
case *parse.PipeNode:
|
|
c.detail("Pipe Node!")
|
|
c.detail(n)
|
|
c.detail("Node Args:", node.Args)
|
|
out += c.compileIdentSwitchN(varholder, holdreflect, templateName, node)
|
|
c.detail("Out:", out)
|
|
default:
|
|
return c.unknownNode(firstWord)
|
|
}
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) unknownNode(node parse.Node) (out string) {
|
|
fmt.Println("Unknown Kind:", reflect.ValueOf(node).Elem().Kind())
|
|
fmt.Println("Unknown Type:", reflect.ValueOf(node).Elem().Type().Name())
|
|
panic("I don't know what node this is! Grr...")
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIdentSwitchN(varholder string, holdreflect reflect.Value, templateName string, node *parse.CommandNode) (out string) {
|
|
c.detail("in compileIdentSwitchN")
|
|
out, _, _ = c.compileIdentSwitch(varholder, holdreflect, templateName, node)
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) dumpSymbol(pos int, node *parse.CommandNode, symbol string) {
|
|
c.detail("symbol: ", symbol)
|
|
c.detail("node.Args[pos + 1]", node.Args[pos+1])
|
|
c.detail("node.Args[pos + 2]", node.Args[pos+2])
|
|
}
|
|
|
|
func (c *CTemplateSet) compareFunc(varholder string, holdreflect reflect.Value, templateName string, pos int, node *parse.CommandNode, compare string) (out string) {
|
|
c.dumpSymbol(pos, node, compare)
|
|
return c.compileIfVarsubN(node.Args[pos+1].String(), varholder, templateName, holdreflect) + " " + compare + " " + c.compileIfVarsubN(node.Args[pos+2].String(), varholder, templateName, holdreflect)
|
|
}
|
|
|
|
func (c *CTemplateSet) simpleMath(varholder string, holdreflect reflect.Value, templateName string, pos int, node *parse.CommandNode, symbol string) (out string, val reflect.Value) {
|
|
leftParam, val2 := c.compileIfVarsub(node.Args[pos+1].String(), varholder, templateName, holdreflect)
|
|
rightParam, val3 := c.compileIfVarsub(node.Args[pos+2].String(), varholder, templateName, holdreflect)
|
|
|
|
if val2.IsValid() {
|
|
val = val2
|
|
} else if val3.IsValid() {
|
|
val = val3
|
|
} else {
|
|
// TODO: What does this do?
|
|
numSample := 1
|
|
val = reflect.ValueOf(numSample)
|
|
}
|
|
c.dumpSymbol(pos, node, symbol)
|
|
return leftParam + " " + symbol + " " + rightParam, val
|
|
}
|
|
|
|
func (c *CTemplateSet) compareJoin(varholder string, holdreflect reflect.Value, templateName string, pos int, node *parse.CommandNode, symbol string) (pos2 int, out string) {
|
|
c.detailf("Building %s function", symbol)
|
|
if pos == 0 {
|
|
fmt.Println("pos:", pos)
|
|
panic(symbol + " is missing a left operand")
|
|
}
|
|
if len(node.Args) <= pos {
|
|
fmt.Println("post pos:", pos)
|
|
fmt.Println("len(node.Args):", len(node.Args))
|
|
panic(symbol + " is missing a right operand")
|
|
}
|
|
|
|
left := c.compileBoolsub(node.Args[pos-1].String(), varholder, templateName, holdreflect)
|
|
_, funcExists := c.funcMap[node.Args[pos+1].String()]
|
|
|
|
var right string
|
|
if !funcExists {
|
|
right = c.compileBoolsub(node.Args[pos+1].String(), varholder, templateName, holdreflect)
|
|
}
|
|
out = left + " " + symbol + " " + right
|
|
|
|
c.detail("Left operand:", node.Args[pos-1])
|
|
c.detail("Right operand:", node.Args[pos+1])
|
|
if !funcExists {
|
|
pos++
|
|
}
|
|
c.detail("pos:", pos)
|
|
c.detail("len(node.Args):", len(node.Args))
|
|
|
|
return pos, out
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIdentSwitch(varholder string, holdreflect reflect.Value, templateName string, node *parse.CommandNode) (out string, val reflect.Value, literal bool) {
|
|
c.detail("in compileIdentSwitch")
|
|
ArgLoop:
|
|
for pos := 0; pos < len(node.Args); pos++ {
|
|
id := node.Args[pos]
|
|
c.detail("pos:", pos)
|
|
c.detail("ID:", id)
|
|
switch id.String() {
|
|
case "not":
|
|
out += "!"
|
|
case "or", "and":
|
|
var rout string
|
|
pos, rout = c.compareJoin(varholder, holdreflect, templateName, pos, node, c.funcMap[id.String()].(string)) // TODO: Test this
|
|
out += rout
|
|
case "le": // TODO: Can we condense these comparison cases down into one?
|
|
out += c.compareFunc(varholder, holdreflect, templateName, pos, node, "<=")
|
|
break ArgLoop
|
|
case "lt":
|
|
out += c.compareFunc(varholder, holdreflect, templateName, pos, node, "<")
|
|
break ArgLoop
|
|
case "gt":
|
|
out += c.compareFunc(varholder, holdreflect, templateName, pos, node, ">")
|
|
break ArgLoop
|
|
case "ge":
|
|
out += c.compareFunc(varholder, holdreflect, templateName, pos, node, ">=")
|
|
break ArgLoop
|
|
case "eq":
|
|
out += c.compareFunc(varholder, holdreflect, templateName, pos, node, "==")
|
|
break ArgLoop
|
|
case "ne":
|
|
out += c.compareFunc(varholder, holdreflect, templateName, pos, node, "!=")
|
|
break ArgLoop
|
|
case "add":
|
|
rout, rval := c.simpleMath(varholder, holdreflect, templateName, pos, node, "+")
|
|
out += rout
|
|
val = rval
|
|
break ArgLoop
|
|
case "subtract":
|
|
rout, rval := c.simpleMath(varholder, holdreflect, templateName, pos, node, "-")
|
|
out += rout
|
|
val = rval
|
|
break ArgLoop
|
|
case "divide":
|
|
rout, rval := c.simpleMath(varholder, holdreflect, templateName, pos, node, "/")
|
|
out += rout
|
|
val = rval
|
|
break ArgLoop
|
|
case "multiply":
|
|
rout, rval := c.simpleMath(varholder, holdreflect, templateName, pos, node, "*")
|
|
out += rout
|
|
val = rval
|
|
break ArgLoop
|
|
case "dock":
|
|
var leftParam, rightParam string
|
|
// TODO: Implement string literals properly
|
|
leftOperand := node.Args[pos+1].String()
|
|
rightOperand := node.Args[pos+2].String()
|
|
|
|
if len(leftOperand) == 0 || len(rightOperand) == 0 {
|
|
panic("The left or right operand for function dock cannot be left blank")
|
|
}
|
|
if leftOperand[0] == '"' {
|
|
leftParam = leftOperand
|
|
} else {
|
|
leftParam, _ = c.compileIfVarsub(leftOperand, varholder, templateName, holdreflect)
|
|
}
|
|
if rightOperand[0] == '"' {
|
|
panic("The right operand for function dock cannot be a string")
|
|
}
|
|
|
|
rightParam, val3 := c.compileIfVarsub(rightOperand, varholder, templateName, holdreflect)
|
|
if !val3.IsValid() {
|
|
panic("val3 is invalid")
|
|
}
|
|
val = val3
|
|
|
|
// TODO: Refactor this
|
|
out = "w.Write([]byte(common.BuildWidget(" + leftParam + "," + rightParam + ")))\n"
|
|
literal = true
|
|
break ArgLoop
|
|
case "lang":
|
|
var leftParam string
|
|
// TODO: Implement string literals properly
|
|
leftOperand := node.Args[pos+1].String()
|
|
if len(leftOperand) == 0 {
|
|
panic("The left operand for the language string cannot be left blank")
|
|
}
|
|
|
|
if leftOperand[0] == '"' {
|
|
// ! Slightly crude but it does the job
|
|
leftParam = strings.Replace(leftOperand, "\"", "", -1)
|
|
} else {
|
|
panic("Phrase names cannot be dynamic")
|
|
}
|
|
|
|
c.langIndexToName = append(c.langIndexToName, leftParam)
|
|
out = "w.Write(phrases[" + strconv.Itoa(len(c.langIndexToName)-1) + "])\n"
|
|
literal = true
|
|
break ArgLoop
|
|
case "scope":
|
|
literal = true
|
|
break ArgLoop
|
|
default:
|
|
c.detail("Variable!")
|
|
if len(node.Args) > (pos + 1) {
|
|
nextNode := node.Args[pos+1].String()
|
|
if nextNode == "or" || nextNode == "and" {
|
|
continue
|
|
}
|
|
}
|
|
out += c.compileIfVarsubN(id.String(), varholder, templateName, holdreflect)
|
|
}
|
|
}
|
|
return out, val, literal
|
|
}
|
|
|
|
func (c *CTemplateSet) compileReflectSwitch(varholder string, holdreflect reflect.Value, templateName string, node *parse.CommandNode) (out string, outVal reflect.Value) {
|
|
c.detail("in compileReflectSwitch")
|
|
firstWord := node.Args[0]
|
|
switch n := firstWord.(type) {
|
|
case *parse.FieldNode:
|
|
if c.config.SuperDebug {
|
|
fmt.Println("Field Node:", n.Ident)
|
|
for _, id := range n.Ident {
|
|
fmt.Println("Field Bit:", id)
|
|
}
|
|
}
|
|
/* Use reflect to determine if the field is for a method, otherwise assume it's a variable. Coming Soon. */
|
|
return c.compileIfVarsub(n.String(), varholder, templateName, holdreflect)
|
|
case *parse.ChainNode:
|
|
c.detail("Chain Node:", n.Node)
|
|
c.detail("node.Args:", node.Args)
|
|
case *parse.DotNode:
|
|
return varholder, holdreflect
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
default:
|
|
//panic("I don't know what node this is")
|
|
}
|
|
return "", outVal
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIfVarsubN(varname string, varholder string, templateName string, cur reflect.Value) (out string) {
|
|
c.detail("in compileIfVarsubN")
|
|
out, _ = c.compileIfVarsub(varname, varholder, templateName, cur)
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) compileIfVarsub(varname string, varholder string, templateName string, cur reflect.Value) (out string, val reflect.Value) {
|
|
c.detail("in compileIfVarsub")
|
|
if varname[0] != '.' && varname[0] != '$' {
|
|
return varname, cur
|
|
}
|
|
|
|
bits := strings.Split(varname, ".")
|
|
if varname[0] == '$' {
|
|
var res VarItemReflect
|
|
if varname[1] == '.' {
|
|
res = c.localVars[templateName]["."]
|
|
} else {
|
|
res = c.localVars[templateName][strings.TrimPrefix(bits[0], "$")]
|
|
}
|
|
out += res.Destination
|
|
cur = res.Value
|
|
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
}
|
|
} else {
|
|
out += varholder
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
out += ".(" + cur.Type().Name() + ")"
|
|
}
|
|
}
|
|
bits[0] = strings.TrimPrefix(bits[0], "$")
|
|
|
|
c.detail("Cur Kind:", cur.Kind())
|
|
c.detail("Cur Type:", cur.Type().Name())
|
|
for _, bit := range bits {
|
|
c.detail("Variable Field:", bit)
|
|
if bit == "" {
|
|
continue
|
|
}
|
|
|
|
// TODO: Fix this up so that it works for regular pointers and not just struct pointers. Ditto for the other cur.Kind() == reflect.Ptr we have in this file
|
|
if cur.Kind() == reflect.Ptr {
|
|
c.detail("Looping over pointer")
|
|
for cur.Kind() == reflect.Ptr {
|
|
cur = cur.Elem()
|
|
}
|
|
c.detail("Data Kind:", cur.Kind().String())
|
|
c.detail("Field Bit:", bit)
|
|
}
|
|
|
|
cur = cur.FieldByName(bit)
|
|
out += "." + bit
|
|
if cur.Kind() == reflect.Interface {
|
|
cur = cur.Elem()
|
|
out += ".(" + cur.Type().Name() + ")"
|
|
}
|
|
if !cur.IsValid() {
|
|
panic(out + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
c.detail("Data Kind:", cur.Kind())
|
|
c.detail("Data Type:", cur.Type().Name())
|
|
}
|
|
|
|
c.detail("Out Value:", out)
|
|
c.detail("Out Kind:", cur.Kind())
|
|
c.detail("Out Type:", cur.Type().Name())
|
|
|
|
for _, varItem := range c.varList {
|
|
if strings.HasPrefix(out, varItem.Destination) {
|
|
out = strings.Replace(out, varItem.Destination, varItem.Name, 1)
|
|
}
|
|
}
|
|
|
|
c.detail("Out Value:", out)
|
|
c.detail("Out Kind:", cur.Kind())
|
|
c.detail("Out Type:", cur.Type().Name())
|
|
|
|
_, ok := c.stats[out]
|
|
if ok {
|
|
c.stats[out]++
|
|
} else {
|
|
c.stats[out] = 1
|
|
}
|
|
|
|
return out, cur
|
|
}
|
|
|
|
func (c *CTemplateSet) compileBoolsub(varname string, varholder string, templateName string, val reflect.Value) string {
|
|
c.detail("in compileBoolsub")
|
|
out, val := c.compileIfVarsub(varname, varholder, templateName, val)
|
|
// TODO: What if it's a pointer or an interface? I *think* we've got pointers handled somewhere, but not interfaces which we don't know the types of at compile time
|
|
switch val.Kind() {
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64:
|
|
out += " > 0"
|
|
case reflect.Bool: // Do nothing
|
|
case reflect.String:
|
|
out += " != \"\""
|
|
case reflect.Slice, reflect.Map:
|
|
out = "len(" + out + ") != 0"
|
|
default:
|
|
fmt.Println("Variable Name:", varname)
|
|
fmt.Println("Variable Holder:", varholder)
|
|
fmt.Println("Variable Kind:", val.Kind())
|
|
panic("I don't know what this variable's type is o.o\n")
|
|
}
|
|
return out
|
|
}
|
|
|
|
func (c *CTemplateSet) compileVarsub(varname string, val reflect.Value, assLines string) (out string) {
|
|
c.detail("in compileVarsub")
|
|
|
|
// Is this a literal string?
|
|
if len(varname) != 0 && varname[0] == '"' {
|
|
return assLines + "w.Write([]byte(" + varname + "))\n"
|
|
}
|
|
|
|
for _, varItem := range c.varList {
|
|
if strings.HasPrefix(varname, varItem.Destination) {
|
|
varname = strings.Replace(varname, varItem.Destination, varItem.Name, 1)
|
|
}
|
|
}
|
|
|
|
_, ok := c.stats[varname]
|
|
if ok {
|
|
c.stats[varname]++
|
|
} else {
|
|
c.stats[varname] = 1
|
|
}
|
|
|
|
if val.Kind() == reflect.Interface {
|
|
val = val.Elem()
|
|
}
|
|
|
|
c.detail("varname: ", varname)
|
|
c.detail("assLines: ", assLines)
|
|
switch val.Kind() {
|
|
case reflect.Int:
|
|
c.importMap["strconv"] = "strconv"
|
|
out = "w.Write([]byte(strconv.Itoa(" + varname + ")))\n"
|
|
case reflect.Bool:
|
|
out = "if " + varname + " {\nw.Write([]byte(\"true\"))} else {\nw.Write([]byte(\"false\"))\n}\n"
|
|
case reflect.String:
|
|
if val.Type().Name() != "string" && !strings.HasPrefix(varname, "string(") {
|
|
varname = "string(" + varname + ")"
|
|
}
|
|
out = "w.Write([]byte(" + varname + "))\n"
|
|
case reflect.Int64:
|
|
c.importMap["strconv"] = "strconv"
|
|
out = "w.Write([]byte(strconv.FormatInt(" + varname + ", 10)))"
|
|
default:
|
|
if !val.IsValid() {
|
|
panic(assLines + varname + "^\n" + "Invalid value. Maybe, it doesn't exist?")
|
|
}
|
|
fmt.Println("Unknown Variable Name:", varname)
|
|
fmt.Println("Unknown Kind:", val.Kind())
|
|
fmt.Println("Unknown Type:", val.Type().Name())
|
|
panic("-- I don't know what this variable's type is o.o\n")
|
|
}
|
|
c.detail("out: ", out)
|
|
return assLines + out
|
|
}
|
|
|
|
func (c *CTemplateSet) compileSubtemplate(pvarholder string, pholdreflect reflect.Value, node *parse.TemplateNode) (out string) {
|
|
c.detail("in compileSubtemplate")
|
|
c.detail("Template Node: ", node.Name)
|
|
|
|
fname := strings.TrimSuffix(node.Name, filepath.Ext(node.Name))
|
|
varholder := "tmpl_" + fname + "_vars"
|
|
var holdreflect reflect.Value
|
|
if node.Pipe != nil {
|
|
for _, cmd := range node.Pipe.Cmds {
|
|
firstWord := cmd.Args[0]
|
|
switch firstWord.(type) {
|
|
case *parse.DotNode:
|
|
varholder = pvarholder
|
|
holdreflect = pholdreflect
|
|
case *parse.NilNode:
|
|
panic("Nil is not a command x.x")
|
|
default:
|
|
c.detail("Unknown Node: ", firstWord)
|
|
panic("")
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: Cascade errors back up the tree to the caller?
|
|
res, err := ioutil.ReadFile(c.fileDir + "overrides/" + node.Name)
|
|
if err != nil {
|
|
c.detail("override path: ", c.fileDir+"overrides/"+node.Name)
|
|
c.detail("override err: ", err)
|
|
res, err = ioutil.ReadFile(c.fileDir + node.Name)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}
|
|
|
|
content := string(res)
|
|
if c.config.Minify {
|
|
content = minify(content)
|
|
}
|
|
|
|
tree := parse.New(node.Name, c.funcMap)
|
|
var treeSet = make(map[string]*parse.Tree)
|
|
tree, err = tree.Parse(content, "{{", "}}", treeSet, c.funcMap)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
c.templateList[fname] = tree
|
|
subtree := c.templateList[fname]
|
|
c.detail("subtree.Root", subtree.Root)
|
|
|
|
c.localVars[fname] = make(map[string]VarItemReflect)
|
|
c.localVars[fname]["."] = VarItemReflect{".", varholder, holdreflect}
|
|
c.fragmentCursor[fname] = 0
|
|
|
|
out += c.rootIterate(subtree, varholder, holdreflect, fname)
|
|
c.TemplateFragmentCount[fname] = c.fragmentCursor[fname] + 1
|
|
return out
|
|
}
|
|
|
|
// TODO: Should we rethink the way the log methods work or their names?
|
|
|
|
func (c *CTemplateSet) detail(args ...interface{}) {
|
|
if c.config.SuperDebug {
|
|
fmt.Println(args...)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) detailf(left string, args ...interface{}) {
|
|
if c.config.SuperDebug {
|
|
fmt.Printf(left, args...)
|
|
}
|
|
}
|
|
|
|
func (c *CTemplateSet) error(args ...interface{}) {
|
|
if c.config.Debug {
|
|
fmt.Println(args...)
|
|
}
|
|
}
|