407 lines
11 KiB
C++
407 lines
11 KiB
C++
// Scintilla source code edit control
|
|
/** @file LexSTTXT.cxx
|
|
** Lexer for Structured Text language.
|
|
** Written by Pavel Bulochkin
|
|
**/
|
|
// 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 "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"
|
|
|
|
#ifdef SCI_NAMESPACE
|
|
using namespace Scintilla;
|
|
#endif
|
|
|
|
static void ClassifySTTXTWord(WordList *keywordlists[], StyleContext &sc)
|
|
{
|
|
char s[256] = { 0 };
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
|
|
|
if ((*keywordlists[0]).InList(s)) {
|
|
sc.ChangeState(SCE_STTXT_KEYWORD);
|
|
}
|
|
|
|
else if ((*keywordlists[1]).InList(s)) {
|
|
sc.ChangeState(SCE_STTXT_TYPE);
|
|
}
|
|
|
|
else if ((*keywordlists[2]).InList(s)) {
|
|
sc.ChangeState(SCE_STTXT_FUNCTION);
|
|
}
|
|
|
|
else if ((*keywordlists[3]).InList(s)) {
|
|
sc.ChangeState(SCE_STTXT_FB);
|
|
}
|
|
|
|
else if ((*keywordlists[4]).InList(s)) {
|
|
sc.ChangeState(SCE_STTXT_VARS);
|
|
}
|
|
|
|
else if ((*keywordlists[5]).InList(s)) {
|
|
sc.ChangeState(SCE_STTXT_PRAGMAS);
|
|
}
|
|
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
}
|
|
|
|
static void ColouriseSTTXTDoc (unsigned int startPos, int length, int initStyle,
|
|
WordList *keywordlists[], Accessor &styler)
|
|
{
|
|
StyleContext sc(startPos, length, initStyle, styler);
|
|
|
|
CharacterSet setWord(CharacterSet::setAlphaNum, "_", 0x80, true);
|
|
CharacterSet setWordStart(CharacterSet::setAlpha, "_", 0x80, true);
|
|
CharacterSet setNumber(CharacterSet::setDigits, "_.eE");
|
|
CharacterSet setHexNumber(CharacterSet::setDigits, "_abcdefABCDEF");
|
|
CharacterSet setOperator(CharacterSet::setNone,",.+-*/:;<=>[]()%&");
|
|
CharacterSet setDataTime(CharacterSet::setDigits,"_.-:dmshDMSH");
|
|
|
|
for ( ; sc.More() ; sc.Forward())
|
|
{
|
|
if(sc.atLineStart && sc.state != SCE_STTXT_COMMENT)
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
|
|
switch(sc.state)
|
|
{
|
|
case SCE_STTXT_NUMBER: {
|
|
if(!setNumber.Contains(sc.ch))
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_HEXNUMBER: {
|
|
if (setHexNumber.Contains(sc.ch))
|
|
continue;
|
|
else if(setDataTime.Contains(sc.ch))
|
|
sc.ChangeState(SCE_STTXT_DATETIME);
|
|
else if(setWord.Contains(sc.ch))
|
|
sc.ChangeState(SCE_STTXT_DEFAULT);
|
|
else
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_DATETIME: {
|
|
if (setDataTime.Contains(sc.ch))
|
|
continue;
|
|
else if(setWord.Contains(sc.ch))
|
|
sc.ChangeState(SCE_STTXT_DEFAULT);
|
|
else
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_OPERATOR: {
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_PRAGMA: {
|
|
if (sc.ch == '}')
|
|
sc.ForwardSetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_COMMENTLINE: {
|
|
if (sc.atLineStart)
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_COMMENT: {
|
|
if(sc.Match('*',')'))
|
|
{
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_STTXT_DEFAULT);
|
|
}
|
|
break;
|
|
}
|
|
case SCE_STTXT_STRING1: {
|
|
if(sc.atLineEnd)
|
|
sc.SetState(SCE_STTXT_STRINGEOL);
|
|
else if(sc.ch == '\'' && sc.chPrev != '$')
|
|
sc.ForwardSetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_STRING2: {
|
|
if (sc.atLineEnd)
|
|
sc.SetState(SCE_STTXT_STRINGEOL);
|
|
else if(sc.ch == '\"' && sc.chPrev != '$')
|
|
sc.ForwardSetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_STRINGEOL: {
|
|
if(sc.atLineStart)
|
|
sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_CHARACTER: {
|
|
if(setHexNumber.Contains(sc.ch))
|
|
sc.SetState(SCE_STTXT_HEXNUMBER);
|
|
else if(setDataTime.Contains(sc.ch))
|
|
sc.SetState(SCE_STTXT_DATETIME);
|
|
else sc.SetState(SCE_STTXT_DEFAULT);
|
|
break;
|
|
}
|
|
case SCE_STTXT_IDENTIFIER: {
|
|
if(!setWord.Contains(sc.ch))
|
|
ClassifySTTXTWord(keywordlists, sc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(sc.state == SCE_STTXT_DEFAULT)
|
|
{
|
|
if(IsADigit(sc.ch))
|
|
sc.SetState(SCE_STTXT_NUMBER);
|
|
else if (setWordStart.Contains(sc.ch))
|
|
sc.SetState(SCE_STTXT_IDENTIFIER);
|
|
else if (sc.Match('/', '/'))
|
|
sc.SetState(SCE_STTXT_COMMENTLINE);
|
|
else if(sc.Match('(', '*'))
|
|
sc.SetState(SCE_STTXT_COMMENT);
|
|
else if (sc.ch == '{')
|
|
sc.SetState(SCE_STTXT_PRAGMA);
|
|
else if (sc.ch == '\'')
|
|
sc.SetState(SCE_STTXT_STRING1);
|
|
else if (sc.ch == '\"')
|
|
sc.SetState(SCE_STTXT_STRING2);
|
|
else if(sc.ch == '#')
|
|
sc.SetState(SCE_STTXT_CHARACTER);
|
|
else if (setOperator.Contains(sc.ch))
|
|
sc.SetState(SCE_STTXT_OPERATOR);
|
|
}
|
|
}
|
|
|
|
if (sc.state == SCE_STTXT_IDENTIFIER && setWord.Contains(sc.chPrev))
|
|
ClassifySTTXTWord(keywordlists, sc);
|
|
|
|
sc.Complete();
|
|
}
|
|
|
|
static const char * const STTXTWordListDesc[] = {
|
|
"Keywords",
|
|
"Types",
|
|
"Functions",
|
|
"FB",
|
|
"Local_Var",
|
|
"Local_Pragma",
|
|
0
|
|
};
|
|
|
|
static bool IsCommentLine(int line, Accessor &styler, bool type)
|
|
{
|
|
int pos = styler.LineStart(line);
|
|
int eolPos = styler.LineStart(line + 1) - 1;
|
|
|
|
for (int i = pos; i < eolPos; i++)
|
|
{
|
|
char ch = styler[i];
|
|
char chNext = styler.SafeGetCharAt(i + 1);
|
|
int style = styler.StyleAt(i);
|
|
|
|
if(type) {
|
|
if (ch == '/' && chNext == '/' && style == SCE_STTXT_COMMENTLINE)
|
|
return true;
|
|
}
|
|
else if (ch == '(' && chNext == '*' && style == SCE_STTXT_COMMENT)
|
|
break;
|
|
|
|
if (!IsASpaceOrTab(ch))
|
|
return false;
|
|
}
|
|
|
|
for (int i = eolPos-2; i>pos; i--)
|
|
{
|
|
char ch = styler[i];
|
|
char chPrev = styler.SafeGetCharAt(i-1);
|
|
int style = styler.StyleAt(i);
|
|
|
|
if(ch == ')' && chPrev == '*' && style == SCE_STTXT_COMMENT)
|
|
return true;
|
|
if(!IsASpaceOrTab(ch))
|
|
return false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool IsPragmaLine(int line, Accessor &styler)
|
|
{
|
|
int pos = styler.LineStart(line);
|
|
int eolPos = styler.LineStart(line+1) - 1;
|
|
|
|
for (int i = pos ; i < eolPos ; i++)
|
|
{
|
|
char ch = styler[i];
|
|
int style = styler.StyleAt(i);
|
|
|
|
if(ch == '{' && style == SCE_STTXT_PRAGMA)
|
|
return true;
|
|
else if (!IsASpaceOrTab(ch))
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void GetRangeUpper(unsigned int start,unsigned int end,Accessor &styler,char *s,unsigned int len)
|
|
{
|
|
unsigned int i = 0;
|
|
while ((i < end - start + 1) && (i < len-1)) {
|
|
s[i] = static_cast<char>(toupper(styler[start + i]));
|
|
i++;
|
|
}
|
|
s[i] = '\0';
|
|
}
|
|
|
|
static void ClassifySTTXTWordFoldPoint(int &levelCurrent,unsigned int lastStart,
|
|
unsigned int currentPos, Accessor &styler)
|
|
{
|
|
char s[256];
|
|
GetRangeUpper(lastStart, currentPos, styler, s, sizeof(s));
|
|
|
|
// See Table C.2 - Keywords
|
|
if (!strcmp(s, "ACTION") ||
|
|
!strcmp(s, "CASE") ||
|
|
!strcmp(s, "CONFIGURATION") ||
|
|
!strcmp(s, "FOR") ||
|
|
!strcmp(s, "FUNCTION") ||
|
|
!strcmp(s, "FUNCTION_BLOCK") ||
|
|
!strcmp(s, "IF") ||
|
|
!strcmp(s, "INITIAL_STEP") ||
|
|
!strcmp(s, "REPEAT") ||
|
|
!strcmp(s, "RESOURCE") ||
|
|
!strcmp(s, "STEP") ||
|
|
!strcmp(s, "STRUCT") ||
|
|
!strcmp(s, "TRANSITION") ||
|
|
!strcmp(s, "TYPE") ||
|
|
!strcmp(s, "VAR") ||
|
|
!strcmp(s, "VAR_INPUT") ||
|
|
!strcmp(s, "VAR_OUTPUT") ||
|
|
!strcmp(s, "VAR_IN_OUT") ||
|
|
!strcmp(s, "VAR_TEMP") ||
|
|
!strcmp(s, "VAR_EXTERNAL") ||
|
|
!strcmp(s, "VAR_ACCESS") ||
|
|
!strcmp(s, "VAR_CONFIG") ||
|
|
!strcmp(s, "VAR_GLOBAL") ||
|
|
!strcmp(s, "WHILE"))
|
|
{
|
|
levelCurrent++;
|
|
}
|
|
else if (!strcmp(s, "END_ACTION") ||
|
|
!strcmp(s, "END_CASE") ||
|
|
!strcmp(s, "END_CONFIGURATION") ||
|
|
!strcmp(s, "END_FOR") ||
|
|
!strcmp(s, "END_FUNCTION") ||
|
|
!strcmp(s, "END_FUNCTION_BLOCK") ||
|
|
!strcmp(s, "END_IF") ||
|
|
!strcmp(s, "END_REPEAT") ||
|
|
!strcmp(s, "END_RESOURCE") ||
|
|
!strcmp(s, "END_STEP") ||
|
|
!strcmp(s, "END_STRUCT") ||
|
|
!strcmp(s, "END_TRANSITION") ||
|
|
!strcmp(s, "END_TYPE") ||
|
|
!strcmp(s, "END_VAR") ||
|
|
!strcmp(s, "END_WHILE"))
|
|
{
|
|
levelCurrent--;
|
|
if (levelCurrent < SC_FOLDLEVELBASE) {
|
|
levelCurrent = SC_FOLDLEVELBASE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void FoldSTTXTDoc(unsigned int startPos, int length, int initStyle, WordList *[],Accessor &styler)
|
|
{
|
|
bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
|
|
bool foldPreprocessor = styler.GetPropertyInt("fold.preprocessor") != 0;
|
|
bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
|
|
unsigned int endPos = startPos + length;
|
|
int visibleChars = 0;
|
|
int lineCurrent = styler.GetLine(startPos);
|
|
int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
|
|
int levelCurrent = levelPrev;
|
|
char chNext = styler[startPos];
|
|
int styleNext = styler.StyleAt(startPos);
|
|
int style = initStyle;
|
|
int lastStart = 0;
|
|
|
|
CharacterSet setWord(CharacterSet::setAlphaNum, "_", 0x80, true);
|
|
|
|
for (unsigned int i = startPos; i < endPos; i++)
|
|
{
|
|
char ch = chNext;
|
|
chNext = styler.SafeGetCharAt(i + 1);
|
|
int stylePrev = style;
|
|
style = styleNext;
|
|
styleNext = styler.StyleAt(i + 1);
|
|
bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
|
|
|
|
if (foldComment && style == SCE_STTXT_COMMENT) {
|
|
if(stylePrev != SCE_STTXT_COMMENT)
|
|
levelCurrent++;
|
|
else if(styleNext != SCE_STTXT_COMMENT && !atEOL)
|
|
levelCurrent--;
|
|
}
|
|
if ( foldComment && atEOL && ( IsCommentLine(lineCurrent, styler,false)
|
|
|| IsCommentLine(lineCurrent,styler,true))) {
|
|
if(!IsCommentLine(lineCurrent-1, styler,true) && IsCommentLine(lineCurrent+1, styler,true))
|
|
levelCurrent++;
|
|
if (IsCommentLine(lineCurrent-1, styler,true) && !IsCommentLine(lineCurrent+1, styler,true))
|
|
levelCurrent--;
|
|
if (!IsCommentLine(lineCurrent-1, styler,false) && IsCommentLine(lineCurrent+1, styler,false))
|
|
levelCurrent++;
|
|
if (IsCommentLine(lineCurrent-1, styler,false) && !IsCommentLine(lineCurrent+1, styler,false))
|
|
levelCurrent--;
|
|
}
|
|
if(foldPreprocessor && atEOL && IsPragmaLine(lineCurrent, styler)) {
|
|
if(!IsPragmaLine(lineCurrent-1, styler) && IsPragmaLine(lineCurrent+1, styler ))
|
|
levelCurrent++;
|
|
else if(IsPragmaLine(lineCurrent-1, styler) && !IsPragmaLine(lineCurrent+1, styler))
|
|
levelCurrent--;
|
|
}
|
|
if (stylePrev != SCE_STTXT_KEYWORD && style == SCE_STTXT_KEYWORD) {
|
|
lastStart = i;
|
|
}
|
|
if(stylePrev == SCE_STTXT_KEYWORD) {
|
|
if(setWord.Contains(ch) && !setWord.Contains(chNext))
|
|
ClassifySTTXTWordFoldPoint(levelCurrent,lastStart, i, styler);
|
|
}
|
|
if (!IsASpace(ch)) {
|
|
visibleChars++;
|
|
}
|
|
if (atEOL) {
|
|
int lev = levelPrev;
|
|
if (visibleChars == 0 && foldCompact)
|
|
lev |= SC_FOLDLEVELWHITEFLAG;
|
|
if ((levelCurrent > levelPrev) && (visibleChars > 0))
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
if (lev != styler.LevelAt(lineCurrent))
|
|
styler.SetLevel(lineCurrent, lev);
|
|
|
|
lineCurrent++;
|
|
levelPrev = levelCurrent;
|
|
visibleChars = 0;
|
|
}
|
|
|
|
// If we didn't reach the EOL in previous loop, store line level and whitespace information.
|
|
// The rest will be filled in later...
|
|
int lev = levelPrev;
|
|
if (visibleChars == 0 && foldCompact)
|
|
lev |= SC_FOLDLEVELWHITEFLAG;
|
|
styler.SetLevel(lineCurrent, lev);
|
|
}
|
|
}
|
|
|
|
LexerModule lmSTTXT(SCLEX_STTXT, ColouriseSTTXTDoc, "fcST", FoldSTTXTDoc, STTXTWordListDesc);
|