notepad-plus-plus/lexilla/lexers/LexErrorList.cxx

416 lines
14 KiB
C++

// Scintilla source code edit control
/** @file LexErrorList.cxx
** Lexer for error lists. Used for the output pane in SciTE.
**/
// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <assert.h>
#include <ctype.h>
#include <string>
#include <string_view>
#include "ILexer.h"
#include "Scintilla.h"
#include "SciLexer.h"
#include "WordList.h"
#include "LexAccessor.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "CharacterSet.h"
#include "LexerModule.h"
using namespace Lexilla;
namespace {
bool strstart(const char *haystack, const char *needle) noexcept {
return strncmp(haystack, needle, strlen(needle)) == 0;
}
constexpr bool Is0To9(char ch) noexcept {
return (ch >= '0') && (ch <= '9');
}
constexpr bool Is1To9(char ch) noexcept {
return (ch >= '1') && (ch <= '9');
}
bool IsAlphabetic(int ch) {
return IsASCII(ch) && isalpha(ch);
}
inline bool AtEOL(Accessor &styler, Sci_PositionU i) {
return (styler[i] == '\n') ||
((styler[i] == '\r') && (styler.SafeGetCharAt(i + 1) != '\n'));
}
bool IsGccExcerpt(const char *s) noexcept {
while (*s) {
if (s[0] == ' ' && s[1] == '|' && (s[2] == ' ' || s[2] == '+')) {
return true;
}
if (!(s[0] == ' ' || s[0] == '+' || Is0To9(s[0]))) {
return false;
}
s++;
}
return true;
}
int RecogniseErrorListLine(const char *lineBuffer, Sci_PositionU lengthLine, Sci_Position &startValue) {
if (lineBuffer[0] == '>') {
// Command or return status
return SCE_ERR_CMD;
} else if (lineBuffer[0] == '<') {
// Diff removal.
return SCE_ERR_DIFF_DELETION;
} else if (lineBuffer[0] == '!') {
return SCE_ERR_DIFF_CHANGED;
} else if (lineBuffer[0] == '+') {
if (strstart(lineBuffer, "+++ ")) {
return SCE_ERR_DIFF_MESSAGE;
} else {
return SCE_ERR_DIFF_ADDITION;
}
} else if (lineBuffer[0] == '-') {
if (strstart(lineBuffer, "--- ")) {
return SCE_ERR_DIFF_MESSAGE;
} else {
return SCE_ERR_DIFF_DELETION;
}
} else if (strstart(lineBuffer, "cf90-")) {
// Absoft Pro Fortran 90/95 v8.2 error and/or warning message
return SCE_ERR_ABSF;
} else if (strstart(lineBuffer, "fortcom:")) {
// Intel Fortran Compiler v8.0 error/warning message
return SCE_ERR_IFORT;
} else if (strstr(lineBuffer, "File \"") && strstr(lineBuffer, ", line ")) {
return SCE_ERR_PYTHON;
} else if (strstr(lineBuffer, " in ") && strstr(lineBuffer, " on line ")) {
return SCE_ERR_PHP;
} else if ((strstart(lineBuffer, "Error ") ||
strstart(lineBuffer, "Warning ")) &&
strstr(lineBuffer, " at (") &&
strstr(lineBuffer, ") : ") &&
(strstr(lineBuffer, " at (") < strstr(lineBuffer, ") : "))) {
// Intel Fortran Compiler error/warning message
return SCE_ERR_IFC;
} else if (strstart(lineBuffer, "Error ")) {
// Borland error message
return SCE_ERR_BORLAND;
} else if (strstart(lineBuffer, "Warning ")) {
// Borland warning message
return SCE_ERR_BORLAND;
} else if (strstr(lineBuffer, "at line ") &&
(strstr(lineBuffer, "at line ") < (lineBuffer + lengthLine)) &&
strstr(lineBuffer, "file ") &&
(strstr(lineBuffer, "file ") < (lineBuffer + lengthLine))) {
// Lua 4 error message
return SCE_ERR_LUA;
} else if (strstr(lineBuffer, " at ") &&
(strstr(lineBuffer, " at ") < (lineBuffer + lengthLine)) &&
strstr(lineBuffer, " line ") &&
(strstr(lineBuffer, " line ") < (lineBuffer + lengthLine)) &&
(strstr(lineBuffer, " at ") + 4 < (strstr(lineBuffer, " line ")))) {
// perl error message:
// <message> at <file> line <line>
return SCE_ERR_PERL;
} else if ((lengthLine >= 6) &&
(memcmp(lineBuffer, " at ", 6) == 0) &&
strstr(lineBuffer, ":line ")) {
// A .NET traceback
return SCE_ERR_NET;
} else if (strstart(lineBuffer, "Line ") &&
strstr(lineBuffer, ", file ")) {
// Essential Lahey Fortran error message
return SCE_ERR_ELF;
} else if (strstart(lineBuffer, "line ") &&
strstr(lineBuffer, " column ")) {
// HTML tidy style: line 42 column 1
return SCE_ERR_TIDY;
} else if (strstart(lineBuffer, "\tat ") &&
strstr(lineBuffer, "(") &&
strstr(lineBuffer, ".java:")) {
// Java stack back trace
return SCE_ERR_JAVA_STACK;
} else if (strstart(lineBuffer, "In file included from ") ||
strstart(lineBuffer, " from ")) {
// GCC showing include path to following error
return SCE_ERR_GCC_INCLUDED_FROM;
} else if (strstart(lineBuffer, "NMAKE : fatal error")) {
// Microsoft nmake fatal error:
// NMAKE : fatal error <code>: <program> : return code <return>
return SCE_ERR_MS;
} else if (strstr(lineBuffer, "warning LNK") ||
strstr(lineBuffer, "error LNK")) {
// Microsoft linker warning:
// {<object> : } (warning|error) LNK9999
return SCE_ERR_MS;
} else if (IsGccExcerpt(lineBuffer)) {
// GCC code excerpt and pointer to issue
// 73 | GTimeVal last_popdown;
// | ^~~~~~~~~~~~
return SCE_ERR_GCC_EXCERPT;
} else {
// Look for one of the following formats:
// GCC: <filename>:<line>:<message>
// Microsoft: <filename>(<line>) :<message>
// Common: <filename>(<line>): warning|error|note|remark|catastrophic|fatal
// Common: <filename>(<line>) warning|error|note|remark|catastrophic|fatal
// Microsoft: <filename>(<line>,<column>)<message>
// CTags: <identifier>\t<filename>\t<message>
// Lua 5 traceback: \t<filename>:<line>:<message>
// Lua 5.1: <exe>: <filename>:<line>:<message>
const bool initialTab = (lineBuffer[0] == '\t');
bool initialColonPart = false;
bool canBeCtags = !initialTab; // For ctags must have an identifier with no spaces then a tab
enum { stInitial,
stGccStart, stGccDigit, stGccColumn, stGcc,
stMsStart, stMsDigit, stMsBracket, stMsVc, stMsDigitComma, stMsDotNet,
stCtagsStart, stCtagsFile, stCtagsStartString, stCtagsStringDollar, stCtags,
stUnrecognized
} state = stInitial;
for (Sci_PositionU i = 0; i < lengthLine; i++) {
const char ch = lineBuffer[i];
char chNext = ' ';
if ((i + 1) < lengthLine)
chNext = lineBuffer[i + 1];
if (state == stInitial) {
if (ch == ':') {
// May be GCC, or might be Lua 5 (Lua traceback same but with tab prefix)
if ((chNext != '\\') && (chNext != '/') && (chNext != ' ')) {
// This check is not completely accurate as may be on
// GTK+ with a file name that includes ':'.
state = stGccStart;
} else if (chNext == ' ') { // indicates a Lua 5.1 error message
initialColonPart = true;
}
} else if ((ch == '(') && Is1To9(chNext) && (!initialTab)) {
// May be Microsoft
// Check against '0' often removes phone numbers
state = stMsStart;
} else if ((ch == '\t') && canBeCtags) {
// May be CTags
state = stCtagsStart;
} else if (ch == ' ') {
canBeCtags = false;
}
} else if (state == stGccStart) { // <filename>:
state = ((ch == '-') || Is0To9(ch)) ? stGccDigit : stUnrecognized;
} else if (state == stGccDigit) { // <filename>:<line>
if (ch == ':') {
state = stGccColumn; // :9.*: is GCC
startValue = i + 1;
} else if (!Is0To9(ch)) {
state = stUnrecognized;
}
} else if (state == stGccColumn) { // <filename>:<line>:<column>
if (!Is0To9(ch)) {
state = stGcc;
if (ch == ':')
startValue = i + 1;
break;
}
} else if (state == stMsStart) { // <filename>(
state = Is0To9(ch) ? stMsDigit : stUnrecognized;
} else if (state == stMsDigit) { // <filename>(<line>
if (ch == ',') {
state = stMsDigitComma;
} else if (ch == ')') {
state = stMsBracket;
} else if ((ch != ' ') && !Is0To9(ch)) {
state = stUnrecognized;
}
} else if (state == stMsBracket) { // <filename>(<line>)
if ((ch == ' ') && (chNext == ':')) {
state = stMsVc;
} else if ((ch == ':' && chNext == ' ') || (ch == ' ')) {
// Possibly Delphi.. don't test against chNext as it's one of the strings below.
char word[512];
unsigned numstep;
if (ch == ' ')
numstep = 1; // ch was ' ', handle as if it's a delphi errorline, only add 1 to i.
else
numstep = 2; // otherwise add 2.
Sci_PositionU chPos = 0;
for (Sci_PositionU j = i + numstep; j < lengthLine && IsAlphabetic(lineBuffer[j]) && chPos < sizeof(word) - 1; j++)
word[chPos++] = lineBuffer[j];
word[chPos] = 0;
if (!CompareCaseInsensitive(word, "error") || !CompareCaseInsensitive(word, "warning") ||
!CompareCaseInsensitive(word, "fatal") || !CompareCaseInsensitive(word, "catastrophic") ||
!CompareCaseInsensitive(word, "note") || !CompareCaseInsensitive(word, "remark")) {
state = stMsVc;
} else {
state = stUnrecognized;
}
} else {
state = stUnrecognized;
}
} else if (state == stMsDigitComma) { // <filename>(<line>,
if (ch == ')') {
state = stMsDotNet;
break;
} else if ((ch != ' ') && !Is0To9(ch)) {
state = stUnrecognized;
}
} else if (state == stCtagsStart) {
if (ch == '\t') {
state = stCtagsFile;
}
} else if (state == stCtagsFile) {
if ((lineBuffer[i - 1] == '\t') &&
((ch == '/' && chNext == '^') || Is0To9(ch))) {
state = stCtags;
break;
} else if ((ch == '/') && (chNext == '^')) {
state = stCtagsStartString;
}
} else if ((state == stCtagsStartString) && ((lineBuffer[i] == '$') && (lineBuffer[i + 1] == '/'))) {
state = stCtagsStringDollar;
break;
}
}
if (state == stGcc) {
return initialColonPart ? SCE_ERR_LUA : SCE_ERR_GCC;
} else if ((state == stMsVc) || (state == stMsDotNet)) {
return SCE_ERR_MS;
} else if ((state == stCtagsStringDollar) || (state == stCtags)) {
return SCE_ERR_CTAG;
} else if (initialColonPart && strstr(lineBuffer, ": warning C")) {
// Microsoft warning without line number
// <filename>: warning C9999
return SCE_ERR_MS;
} else {
return SCE_ERR_DEFAULT;
}
}
}
#define CSI "\033["
constexpr bool SequenceEnd(int ch) noexcept {
return (ch == 0) || ((ch >= '@') && (ch <= '~'));
}
int StyleFromSequence(const char *seq) noexcept {
int bold = 0;
int colour = 0;
while (!SequenceEnd(*seq)) {
if (Is0To9(*seq)) {
int base = *seq - '0';
if (Is0To9(seq[1])) {
base = base * 10;
base += seq[1] - '0';
seq++;
}
if (base == 0) {
colour = 0;
bold = 0;
}
else if (base == 1) {
bold = 1;
}
else if (base >= 30 && base <= 37) {
colour = base - 30;
}
}
seq++;
}
return SCE_ERR_ES_BLACK + bold * 8 + colour;
}
void ColouriseErrorListLine(
const std::string &lineBuffer,
Sci_PositionU endPos,
Accessor &styler,
bool valueSeparate,
bool escapeSequences) {
Sci_Position startValue = -1;
const Sci_PositionU lengthLine = lineBuffer.length();
const int style = RecogniseErrorListLine(lineBuffer.c_str(), lengthLine, startValue);
if (escapeSequences && strstr(lineBuffer.c_str(), CSI)) {
const Sci_Position startPos = endPos - lengthLine;
const char *linePortion = lineBuffer.c_str();
Sci_Position startPortion = startPos;
int portionStyle = style;
while (const char *startSeq = strstr(linePortion, CSI)) {
if (startSeq > linePortion) {
styler.ColourTo(startPortion + static_cast<int>(startSeq - linePortion), portionStyle);
}
const char *endSeq = startSeq + 2;
while (!SequenceEnd(*endSeq))
endSeq++;
const Sci_Position endSeqPosition = startPortion + static_cast<Sci_Position>(endSeq - linePortion) + 1;
switch (*endSeq) {
case 0:
styler.ColourTo(endPos, SCE_ERR_ESCSEQ_UNKNOWN);
return;
case 'm': // Colour command
styler.ColourTo(endSeqPosition, SCE_ERR_ESCSEQ);
portionStyle = StyleFromSequence(startSeq+2);
break;
case 'K': // Erase to end of line -> ignore
styler.ColourTo(endSeqPosition, SCE_ERR_ESCSEQ);
break;
default:
styler.ColourTo(endSeqPosition, SCE_ERR_ESCSEQ_UNKNOWN);
portionStyle = style;
}
startPortion = endSeqPosition;
linePortion = endSeq + 1;
}
styler.ColourTo(endPos, portionStyle);
} else {
if (valueSeparate && (startValue >= 0)) {
styler.ColourTo(endPos - (lengthLine - startValue), style);
styler.ColourTo(endPos, SCE_ERR_VALUE);
} else {
styler.ColourTo(endPos, style);
}
}
}
void ColouriseErrorListDoc(Sci_PositionU startPos, Sci_Position length, int, WordList *[], Accessor &styler) {
std::string lineBuffer;
styler.StartAt(startPos);
styler.StartSegment(startPos);
// property lexer.errorlist.value.separate
// For lines in the output pane that are matches from Find in Files or GCC-style
// diagnostics, style the path and line number separately from the rest of the
// line with style 21 used for the rest of the line.
// This allows matched text to be more easily distinguished from its location.
const bool valueSeparate = styler.GetPropertyInt("lexer.errorlist.value.separate", 0) != 0;
// property lexer.errorlist.escape.sequences
// Set to 1 to interpret escape sequences.
const bool escapeSequences = styler.GetPropertyInt("lexer.errorlist.escape.sequences") != 0;
for (Sci_PositionU i = startPos; i < startPos + length; i++) {
lineBuffer.push_back(styler[i]);
if (AtEOL(styler, i)) {
// End of line met, colourise it
ColouriseErrorListLine(lineBuffer, i, styler, valueSeparate, escapeSequences);
lineBuffer.clear();
}
}
if (!lineBuffer.empty()) { // Last line does not have ending characters
ColouriseErrorListLine(lineBuffer, startPos + length - 1, styler, valueSeparate, escapeSequences);
}
}
const char *const emptyWordListDesc[] = {
nullptr
};
}
LexerModule lmErrorList(SCLEX_ERRORLIST, ColouriseErrorListDoc, "errorlist", 0, emptyWordListDesc);