You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
370 lines
10 KiB
370 lines
10 KiB
// Scintilla source code edit control
|
|
/** @file LexPascal.cxx
|
|
** Lexer for Pascal.
|
|
** Written by Laurent le Tynevez
|
|
** Updated by Simon Steele <s.steele@pnotepad.org> September 2002
|
|
** Updated by Mathias Rauen <scite@madshi.net> May 2003 (Delphi adjustments)
|
|
**/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
|
|
#include "Platform.h"
|
|
|
|
#include "PropSet.h"
|
|
#include "Accessor.h"
|
|
#include "KeyWords.h"
|
|
#include "Scintilla.h"
|
|
#include "SciLexer.h"
|
|
#include "StyleContext.h"
|
|
|
|
static void getRange(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>(tolower(styler[start + i]));
|
|
i++;
|
|
}
|
|
s[i] = '\0';
|
|
}
|
|
|
|
static bool IsStreamCommentStyle(int style) {
|
|
return style == SCE_C_COMMENT ||
|
|
style == SCE_C_COMMENTDOC ||
|
|
style == SCE_C_COMMENTDOCKEYWORD ||
|
|
style == SCE_C_COMMENTDOCKEYWORDERROR;
|
|
}
|
|
|
|
static void ColourTo(Accessor &styler, unsigned int end, unsigned int attr, bool bInAsm) {
|
|
if ((bInAsm) && (attr == SCE_C_OPERATOR || attr == SCE_C_NUMBER || attr == SCE_C_DEFAULT || attr == SCE_C_WORD || attr == SCE_C_IDENTIFIER)) {
|
|
styler.ColourTo(end, SCE_C_REGEX);
|
|
} else
|
|
styler.ColourTo(end, attr);
|
|
}
|
|
|
|
// returns 1 if the item starts a class definition, and -1 if the word is "end", and 2 if the word is "asm"
|
|
static int classifyWordPascal(unsigned int start, unsigned int end, /*WordList &keywords*/WordList *keywordlists[], Accessor &styler, bool bInClass, bool bInAsm) {
|
|
int ret = 0;
|
|
|
|
WordList& keywords = *keywordlists[0];
|
|
WordList& classwords = *keywordlists[1];
|
|
|
|
char s[100];
|
|
getRange(start, end, styler, s, sizeof(s));
|
|
|
|
char chAttr = SCE_C_IDENTIFIER;
|
|
if (isdigit(s[0]) || (s[0] == '.') ||(s[0] == '$')) {
|
|
chAttr = SCE_C_NUMBER;
|
|
}
|
|
else {
|
|
if (s[0] == '#') {
|
|
chAttr = SCE_C_CHARACTER;
|
|
}
|
|
else {
|
|
if (keywords.InList(s)) {
|
|
chAttr = SCE_C_WORD;
|
|
|
|
if(strcmp(s, "class") == 0) {
|
|
ret = 1;
|
|
}
|
|
else if (strcmp(s, "asm") == 0) {
|
|
ret = 2;
|
|
}
|
|
else if (strcmp(s, "end") == 0) {
|
|
ret = -1;
|
|
}
|
|
} else if (bInClass) {
|
|
if (classwords.InList(s)) {
|
|
chAttr = SCE_C_WORD;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
ColourTo(styler, end, chAttr, (bInAsm && ret != -1));
|
|
return ret;
|
|
}
|
|
|
|
static int classifyFoldPointPascal(const char* s) {
|
|
int lev = 0;
|
|
if (!(isdigit(s[0]) || (s[0] == '.'))) {
|
|
if (strcmp(s, "begin") == 0 ||
|
|
strcmp(s, "object") == 0 ||
|
|
strcmp(s, "case") == 0 ||
|
|
strcmp(s, "class") == 0 ||
|
|
strcmp(s, "record") == 0 ||
|
|
strcmp(s, "try") == 0) {
|
|
lev=1;
|
|
} else if (strcmp(s, "end") == 0) {
|
|
lev=-1;
|
|
}
|
|
}
|
|
return lev;
|
|
}
|
|
|
|
static void ColourisePascalDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
|
|
Accessor &styler) {
|
|
|
|
styler.StartAt(startPos);
|
|
|
|
int state = initStyle;
|
|
if (state == SCE_C_CHARACTER) // Does not leak onto next line
|
|
state = SCE_C_DEFAULT;
|
|
char chPrev = ' ';
|
|
char chNext = styler[startPos];
|
|
unsigned int lengthDoc = startPos + length;
|
|
|
|
bool bInClassDefinition;
|
|
|
|
int currentLine = styler.GetLine(startPos);
|
|
if (currentLine > 0) {
|
|
styler.SetLineState(currentLine, styler.GetLineState(currentLine-1));
|
|
bInClassDefinition = (styler.GetLineState(currentLine) == 1);
|
|
} else {
|
|
styler.SetLineState(currentLine, 0);
|
|
bInClassDefinition = false;
|
|
}
|
|
|
|
bool bInAsm = (state == SCE_C_REGEX);
|
|
if (bInAsm)
|
|
state = SCE_C_DEFAULT;
|
|
|
|
styler.StartSegment(startPos);
|
|
for (unsigned int i = startPos; i < lengthDoc; i++) {
|
|
char ch = chNext;
|
|
|
|
chNext = styler.SafeGetCharAt(i + 1);
|
|
|
|
if ((ch == '\r' && chNext != '\n') || (ch == '\n')) {
|
|
// Trigger on CR only (Mac style) or either on LF from CR+LF (Dos/Win) or on LF alone (Unix)
|
|
// Avoid triggering two times on Dos/Win
|
|
// End of line
|
|
if (state == SCE_C_CHARACTER) {
|
|
ColourTo(styler, i, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
}
|
|
currentLine++;
|
|
styler.SetLineState(currentLine, (bInClassDefinition ? 1 : 0));
|
|
}
|
|
|
|
if (styler.IsLeadByte(ch)) {
|
|
chNext = styler.SafeGetCharAt(i + 2);
|
|
chPrev = ' ';
|
|
i += 1;
|
|
continue;
|
|
}
|
|
|
|
if (state == SCE_C_DEFAULT) {
|
|
if (iswordstart(ch) || ch == '#' || ch == '$' || (ch == '@' && bInAsm)) {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_IDENTIFIER;
|
|
} else if (ch == '{' && chNext != '$' && chNext != '&') {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_COMMENT;
|
|
} else if (ch == '(' && chNext == '*'
|
|
&& styler.SafeGetCharAt(i + 2) != '$'
|
|
&& styler.SafeGetCharAt(i + 2) != '&') {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_COMMENTDOC;
|
|
} else if (ch == '/' && chNext == '/') {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_COMMENTLINE;
|
|
} else if (ch == '\'') {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_CHARACTER;
|
|
} else if (ch == '{' && (chNext == '$' || chNext=='&')) {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_PREPROCESSOR;
|
|
} else if (isoperator(ch)) {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
ColourTo(styler, i, SCE_C_OPERATOR, bInAsm);
|
|
|
|
}
|
|
} else if (state == SCE_C_IDENTIFIER) {
|
|
bool bDoublePoint = ((ch == '.') && (chPrev == '.'));
|
|
if ((!iswordchar(ch) && ch != '$' && ch != '#' && (ch != '@' || !bInAsm)) || bDoublePoint) {
|
|
if (bDoublePoint) i--;
|
|
int lStateChange = classifyWordPascal(styler.GetStartSegment(), i - 1, keywordlists, styler, bInClassDefinition, bInAsm);
|
|
|
|
if(lStateChange == 1) {
|
|
styler.SetLineState(currentLine, 1);
|
|
bInClassDefinition = true;
|
|
} else if(lStateChange == 2) {
|
|
bInAsm = true;
|
|
} else if(lStateChange == -1) {
|
|
styler.SetLineState(currentLine, 0);
|
|
bInClassDefinition = false;
|
|
bInAsm = false;
|
|
}
|
|
if (bDoublePoint) {
|
|
i++;
|
|
ColourTo(styler, i-1, SCE_C_DEFAULT, bInAsm);
|
|
}
|
|
|
|
state = SCE_C_DEFAULT;
|
|
chNext = styler.SafeGetCharAt(i + 1);
|
|
if (ch == '{' && chNext != '$' && chNext != '&') {
|
|
state = SCE_C_COMMENT;
|
|
} else if (ch == '(' && chNext == '*'
|
|
&& styler.SafeGetCharAt(i + 2) != '$'
|
|
&& styler.SafeGetCharAt(i + 2) != '&') {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_COMMENTDOC;
|
|
} else if (ch == '/' && chNext == '/') {
|
|
state = SCE_C_COMMENTLINE;
|
|
} else if (ch == '\'') {
|
|
state = SCE_C_CHARACTER;
|
|
} else if (isoperator(ch)) {
|
|
ColourTo(styler, i, SCE_C_OPERATOR, bInAsm);
|
|
}
|
|
}
|
|
} else {
|
|
if (state == SCE_C_PREPROCESSOR) {
|
|
if (ch=='}'){
|
|
ColourTo(styler, i, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
} else {
|
|
if ((ch == '\r' || ch == '\n') && !(chPrev == '\\' || chPrev == '\r')) {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
}
|
|
}
|
|
} else if (state == SCE_C_COMMENT) {
|
|
if (ch == '}' ) {
|
|
ColourTo(styler, i, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
}
|
|
} else if (state == SCE_C_COMMENTDOC) {
|
|
if (ch == ')' && chPrev == '*') {
|
|
if (((i > styler.GetStartSegment() + 2) || (
|
|
(initStyle == SCE_C_COMMENTDOC) &&
|
|
(styler.GetStartSegment() == static_cast<unsigned int>(startPos))))) {
|
|
ColourTo(styler, i, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
}
|
|
}
|
|
} else if (state == SCE_C_COMMENTLINE) {
|
|
if (ch == '\r' || ch == '\n') {
|
|
ColourTo(styler, i-1, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
}
|
|
} else if (state == SCE_C_CHARACTER) {
|
|
if (ch == '\'') {
|
|
ColourTo(styler, i, state, bInAsm);
|
|
state = SCE_C_DEFAULT;
|
|
}
|
|
}
|
|
}
|
|
chPrev = ch;
|
|
}
|
|
ColourTo(styler, lengthDoc - 1, state, bInAsm);
|
|
}
|
|
|
|
static void FoldPascalDoc(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;
|
|
|
|
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 (stylePrev == SCE_C_DEFAULT && style == SCE_C_WORD)
|
|
{
|
|
// Store last word start point.
|
|
lastStart = i;
|
|
}
|
|
|
|
if (stylePrev == SCE_C_WORD) {
|
|
if(iswordchar(ch) && !iswordchar(chNext)) {
|
|
char s[100];
|
|
getRange(lastStart, i, styler, s, sizeof(s));
|
|
levelCurrent += classifyFoldPointPascal(s);
|
|
}
|
|
}
|
|
|
|
if (foldComment && (style == SCE_C_COMMENTLINE)) {
|
|
if ((ch == '/') && (chNext == '/')) {
|
|
char chNext2 = styler.SafeGetCharAt(i + 2);
|
|
if (chNext2 == '{') {
|
|
levelCurrent++;
|
|
} else if (chNext2 == '}') {
|
|
levelCurrent--;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (foldPreprocessor && (style == SCE_C_PREPROCESSOR)) {
|
|
if (ch == '{' && chNext == '$') {
|
|
unsigned int j=i+2; // skip {$
|
|
while ((j<endPos) && IsASpaceOrTab(styler.SafeGetCharAt(j))) {
|
|
j++;
|
|
}
|
|
if (styler.Match(j, "region") || styler.Match(j, "if")) {
|
|
levelCurrent++;
|
|
} else if (styler.Match(j, "end")) {
|
|
levelCurrent--;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (foldComment && IsStreamCommentStyle(style)) {
|
|
if (!IsStreamCommentStyle(stylePrev)) {
|
|
levelCurrent++;
|
|
} else if (!IsStreamCommentStyle(styleNext) && !atEOL) {
|
|
// Comments don't end at end of line and the next character may be unstyled.
|
|
levelCurrent--;
|
|
}
|
|
}
|
|
|
|
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 (!isspacechar(ch))
|
|
visibleChars++;
|
|
}
|
|
|
|
// Fill in the real level of the next line, keeping the current flags as they will be filled in later
|
|
int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
|
|
styler.SetLevel(lineCurrent, levelPrev | flagsNext);
|
|
}
|
|
|
|
static const char * const pascalWordListDesc[] = {
|
|
"Keywords",
|
|
"Classwords",
|
|
0
|
|
};
|
|
|
|
LexerModule lmPascal(SCLEX_PASCAL, ColourisePascalDoc, "pascal", FoldPascalDoc, pascalWordListDesc);
|