Support extracting translations from SQL scripts

1 files changed, 114 insertions, 0 deletions

diff --git a/cmd/extpo/html.go b/cmd/extpo/html.go
new file mode 100644
index 0000000..d53cbfa
--- /dev/null
+++ b/cmd/extpo/html.go
@@ -0,0 +1,114 @@
+package main
+
+import (
+	"strings"
+	"text/template/parse"
+)
+
+func processHtml(path string) {
+	trees := make(map[string]*parse.Tree)
+	t := parse.New(path)
+	t.Mode |= parse.ParseComments | parse.SkipFuncCheck
+	try2(t.Parse(string(currentFile), "", "", trees))
+	for _, t := range trees {
+		processHtmlNode(t.Root)
+	}
+}
+
+func processHtmlNode(node parse.Node) {
+	switch n := node.(type) {
+	case *parse.ListNode:
+		for _, m := range n.Nodes {
+			processHtmlNode(m)
+		}
+	case *parse.PipeNode:
+		for _, m := range n.Cmds {
+			processHtmlNode(m)
+		}
+	case *parse.TemplateNode:
+		processHtmlNode(n.Pipe)
+	case *parse.IfNode:
+		processHtmlBranch(n.BranchNode)
+	case *parse.RangeNode:
+		processHtmlBranch(n.BranchNode)
+	case *parse.WithNode:
+		processHtmlBranch(n.BranchNode)
+	case *parse.BranchNode:
+		processHtmlBranch(*n)
+	case *parse.ActionNode:
+		processHtmlNode(n.Pipe)
+	case *parse.CommandNode:
+		if len(n.Args) == 0 {
+			break
+		}
+
+		var funcname string
+		f, ok := n.Args[0].(*parse.FieldNode)
+		if !ok || len(f.Ident) == 0 {
+			ff, ok := n.Args[0].(*parse.VariableNode)
+			if !ok || len(ff.Ident) == 0 {
+				fff, ok := n.Args[0].(*parse.IdentifierNode)
+				if !ok {
+					for _, pipe := range n.Args {
+						processHtmlNode(pipe)
+					}
+					break
+				}
+				funcname = fff.Ident
+			} else {
+				funcname = ff.Ident[len(ff.Ident)-1]
+			}
+		} else {
+			funcname = f.Ident[len(f.Ident)-1]
+		}
+
+		cfg, ok := configs[funcname]
+		if !ok {
+			for _, pipe := range n.Args {
+				processHtmlNode(pipe)
+			}
+			break
+		}
+
+		var (
+			tl     translation
+			linenr int
+		)
+
+		if sn, ok := n.Args[cfg.arg].(*parse.StringNode); ok {
+			tl.msgid = sn.Text
+			linenr = getlinenr(sn.Pos.Position())
+		} else {
+			break
+		}
+		if cfg.plural != -1 {
+			if sn, ok := n.Args[cfg.plural].(*parse.StringNode); ok {
+				tl.msgidPlural = sn.Text
+			}
+		}
+		if cfg.context != -1 {
+			if sn, ok := n.Args[cfg.context].(*parse.StringNode); ok {
+				tl.msgctxt = sn.Text
+			}
+		}
+
+		ti := translations[tl]
+		if lastComment != "" {
+			ti.comment = lastComment
+			lastComment = ""
+		}
+		ti.locs = append(ti.locs, loc{currentPath, linenr})
+		translations[tl] = ti
+	case *parse.CommentNode:
+		if strings.HasPrefix(n.Text, "/* TRANSLATORS:") {
+			lastComment = strings.TrimSpace(n.Text[2 : len(n.Text)-2])
+		}
+	}
+}
+
+func processHtmlBranch(n parse.BranchNode) {
+	processHtmlNode(n.List)
+	if n.ElseList != nil {
+		processHtmlNode(n.ElseList)
+	}
+}