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-rw-r--r--lexers/LexOthers.cxx171
1 files changed, 105 insertions, 66 deletions
diff --git a/lexers/LexOthers.cxx b/lexers/LexOthers.cxx
index 77c156a3c..fb8c97b31 100644
--- a/lexers/LexOthers.cxx
+++ b/lexers/LexOthers.cxx
@@ -614,76 +614,115 @@ static void FoldDiffDoc(unsigned int startPos, int length, int, WordList *[], Ac
} while (static_cast<int>(startPos) + length > curLineStart);
}
-static void ColourisePoLine(
- char *lineBuffer,
- unsigned int lengthLine,
- unsigned int startLine,
- unsigned int endPos,
- Accessor &styler) {
-
- unsigned int i = 0;
- static unsigned int state = SCE_PO_DEFAULT;
- unsigned int state_start = SCE_PO_DEFAULT;
-
- while ((i < lengthLine) && isspacechar(lineBuffer[i])) // Skip initial spaces
- i++;
- if (i < lengthLine) {
- if (lineBuffer[i] == '#') {
- // check if the comment contains any flags ("#, ") and
- // then whether the flags contain "fuzzy"
- if (strstart(lineBuffer, "#, ") && strstr(lineBuffer, "fuzzy"))
- styler.ColourTo(endPos, SCE_PO_FUZZY);
- else
- styler.ColourTo(endPos, SCE_PO_COMMENT);
- } else {
- if (lineBuffer[0] == '"') {
- // line continuation, use previous style
- styler.ColourTo(endPos, state);
- return;
- // this implicitly also matches "msgid_plural"
- } else if (strstart(lineBuffer, "msgid")) {
- state_start = SCE_PO_MSGID;
- state = SCE_PO_MSGID_TEXT;
- } else if (strstart(lineBuffer, "msgstr")) {
- state_start = SCE_PO_MSGSTR;
- state = SCE_PO_MSGSTR_TEXT;
- } else if (strstart(lineBuffer, "msgctxt")) {
- state_start = SCE_PO_MSGCTXT;
- state = SCE_PO_MSGCTXT_TEXT;
- }
- if (state_start != SCE_PO_DEFAULT) {
- // find the next space
- while ((i < lengthLine) && ! isspacechar(lineBuffer[i]))
- i++;
- styler.ColourTo(startLine + i - 1, state_start);
- styler.ColourTo(startLine + i, SCE_PO_DEFAULT);
- styler.ColourTo(endPos, state);
+// see https://www.gnu.org/software/gettext/manual/gettext.html#PO-Files for the syntax reference
+// some details are taken from the GNU msgfmt behavior (like that indent is allows in front of lines)
+static void ColourisePoDoc(unsigned int startPos, int length, int initStyle, WordList *[], Accessor &styler) {
+ StyleContext sc(startPos, length, initStyle, styler);
+ bool escaped = false;
+ int curLine = styler.GetLine(startPos);
+ // the line state holds the last state on or before the line that isn't the default style
+ int curLineState = curLine > 0 ? styler.GetLineState(curLine - 1) : SCE_PO_DEFAULT;
+
+ for (; sc.More(); sc.Forward()) {
+ // whether we should leave a state
+ switch (sc.state) {
+ case SCE_PO_COMMENT:
+ case SCE_PO_PROGRAMMER_COMMENT:
+ case SCE_PO_REFERENCE:
+ case SCE_PO_FLAGS:
+ case SCE_PO_FUZZY:
+ if (sc.atLineEnd)
+ sc.SetState(SCE_PO_DEFAULT);
+ else if (sc.state == SCE_PO_FLAGS && sc.Match("fuzzy"))
+ // here we behave like the previous parser, but this should probably be highlighted
+ // on its own like a keyword rather than changing the whole flags style
+ sc.ChangeState(SCE_PO_FUZZY);
+ break;
+
+ case SCE_PO_MSGCTXT:
+ case SCE_PO_MSGID:
+ case SCE_PO_MSGSTR:
+ if (isspacechar(sc.ch))
+ sc.SetState(SCE_PO_DEFAULT);
+ break;
+
+ case SCE_PO_ERROR:
+ if (sc.atLineEnd)
+ sc.SetState(SCE_PO_DEFAULT);
+ break;
+
+ case SCE_PO_MSGCTXT_TEXT:
+ case SCE_PO_MSGID_TEXT:
+ case SCE_PO_MSGSTR_TEXT:
+ if (sc.atLineEnd) { // invalid inside a string
+ if (sc.state == SCE_PO_MSGCTXT_TEXT)
+ sc.ChangeState(SCE_PO_MSGCTXT_TEXT_EOL);
+ else if (sc.state == SCE_PO_MSGID_TEXT)
+ sc.ChangeState(SCE_PO_MSGID_TEXT_EOL);
+ else if (sc.state == SCE_PO_MSGSTR_TEXT)
+ sc.ChangeState(SCE_PO_MSGSTR_TEXT_EOL);
+ sc.SetState(SCE_PO_DEFAULT);
+ escaped = false;
+ } else {
+ if (escaped)
+ escaped = false;
+ else if (sc.ch == '\\')
+ escaped = true;
+ else if (sc.ch == '"')
+ sc.ForwardSetState(SCE_PO_DEFAULT);
+ }
+ break;
+ }
+
+ // whether we should enter a new state
+ if (sc.state == SCE_PO_DEFAULT) {
+ // forward to the first non-white character on the line
+ bool atLineStart = sc.atLineStart;
+ if (atLineStart) {
+ while (sc.More() && ! sc.atLineEnd && isspacechar(sc.ch))
+ sc.Forward();
}
+
+ if (atLineStart && sc.ch == '#') {
+ if (sc.chNext == '.')
+ sc.SetState(SCE_PO_PROGRAMMER_COMMENT);
+ else if (sc.chNext == ':')
+ sc.SetState(SCE_PO_REFERENCE);
+ else if (sc.chNext == ',')
+ sc.SetState(SCE_PO_FLAGS);
+ else if (sc.chNext == '|')
+ sc.SetState(SCE_PO_COMMENT); // previous untranslated string, no special style yet
+ else
+ sc.SetState(SCE_PO_COMMENT);
+ } else if (atLineStart && sc.Match("msgid")) { // includes msgid_plural
+ sc.SetState(SCE_PO_MSGID);
+ } else if (atLineStart && sc.Match("msgstr")) { // includes [] suffixes
+ sc.SetState(SCE_PO_MSGSTR);
+ } else if (atLineStart && sc.Match("msgctxt")) {
+ sc.SetState(SCE_PO_MSGCTXT);
+ } else if (sc.ch == '"') {
+ if (curLineState == SCE_PO_MSGCTXT || curLineState == SCE_PO_MSGCTXT_TEXT)
+ sc.SetState(SCE_PO_MSGCTXT_TEXT);
+ else if (curLineState == SCE_PO_MSGID || curLineState == SCE_PO_MSGID_TEXT)
+ sc.SetState(SCE_PO_MSGID_TEXT);
+ else if (curLineState == SCE_PO_MSGSTR || curLineState == SCE_PO_MSGSTR_TEXT)
+ sc.SetState(SCE_PO_MSGSTR_TEXT);
+ else
+ sc.SetState(SCE_PO_ERROR);
+ } else if (! isspacechar(sc.ch))
+ sc.SetState(SCE_PO_ERROR);
+
+ if (sc.state != SCE_PO_DEFAULT)
+ curLineState = sc.state;
}
- } else {
- styler.ColourTo(endPos, SCE_PO_DEFAULT);
- }
-}
-
-static void ColourisePoDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler) {
- char lineBuffer[1024];
- styler.StartAt(startPos);
- styler.StartSegment(startPos);
- unsigned int linePos = 0;
- unsigned int startLine = startPos;
- for (unsigned int i = startPos; i < startPos + length; i++) {
- lineBuffer[linePos++] = styler[i];
- if (AtEOL(styler, i) || (linePos >= sizeof(lineBuffer) - 1)) {
- // End of line (or of line buffer) met, colourise it
- lineBuffer[linePos] = '\0';
- ColourisePoLine(lineBuffer, linePos, startLine, i, styler);
- linePos = 0;
- startLine = i + 1;
+
+ if (sc.atLineEnd) {
+ // Update the line state, so it can be seen by next line
+ curLine = styler.GetLine(sc.currentPos);
+ styler.SetLineState(curLine, curLineState);
}
}
- if (linePos > 0) { // Last line does not have ending characters
- ColourisePoLine(lineBuffer, linePos, startLine, startPos + length - 1, styler);
- }
+ sc.Complete();
}
static inline bool isassignchar(unsigned char ch) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-11 16:15:30 +0000