293 lines
8.8 KiB
C++
Executable File
293 lines
8.8 KiB
C++
Executable File
// Scintilla source code edit control
|
|
/** @file LexSpecman.cxx
|
|
** Lexer for Specman E language.
|
|
** Written by Avi Yegudin, based on C++ lexer by Neil Hodgson
|
|
**/
|
|
// Copyright 1998-2002 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 "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 inline bool IsAWordChar(const int ch) {
|
|
return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_' || ch == '\'');
|
|
}
|
|
|
|
static inline bool IsANumberChar(const int ch) {
|
|
return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '\'');
|
|
}
|
|
|
|
static inline bool IsAWordStart(const int ch) {
|
|
return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '`');
|
|
}
|
|
|
|
static void ColouriseSpecmanDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
|
|
Accessor &styler, bool caseSensitive) {
|
|
|
|
WordList &keywords = *keywordlists[0];
|
|
WordList &keywords2 = *keywordlists[1];
|
|
WordList &keywords3 = *keywordlists[2];
|
|
WordList &keywords4 = *keywordlists[3];
|
|
|
|
// Do not leak onto next line
|
|
if (initStyle == SCE_SN_STRINGEOL)
|
|
initStyle = SCE_SN_CODE;
|
|
|
|
int visibleChars = 0;
|
|
|
|
StyleContext sc(startPos, length, initStyle, styler);
|
|
|
|
for (; sc.More(); sc.Forward()) {
|
|
|
|
if (sc.atLineStart && (sc.state == SCE_SN_STRING)) {
|
|
// Prevent SCE_SN_STRINGEOL from leaking back to previous line
|
|
sc.SetState(SCE_SN_STRING);
|
|
}
|
|
|
|
// Handle line continuation generically.
|
|
if (sc.ch == '\\') {
|
|
if (sc.chNext == '\n' || sc.chNext == '\r') {
|
|
sc.Forward();
|
|
if (sc.ch == '\r' && sc.chNext == '\n') {
|
|
sc.Forward();
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Determine if the current state should terminate.
|
|
if (sc.state == SCE_SN_OPERATOR) {
|
|
sc.SetState(SCE_SN_CODE);
|
|
} else if (sc.state == SCE_SN_NUMBER) {
|
|
if (!IsANumberChar(sc.ch)) {
|
|
sc.SetState(SCE_SN_CODE);
|
|
}
|
|
} else if (sc.state == SCE_SN_IDENTIFIER) {
|
|
if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
|
|
char s[100];
|
|
if (caseSensitive) {
|
|
sc.GetCurrent(s, sizeof(s));
|
|
} else {
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
|
}
|
|
if (keywords.InList(s)) {
|
|
sc.ChangeState(SCE_SN_WORD);
|
|
} else if (keywords2.InList(s)) {
|
|
sc.ChangeState(SCE_SN_WORD2);
|
|
} else if (keywords3.InList(s)) {
|
|
sc.ChangeState(SCE_SN_WORD3);
|
|
} else if (keywords4.InList(s)) {
|
|
sc.ChangeState(SCE_SN_USER);
|
|
}
|
|
sc.SetState(SCE_SN_CODE);
|
|
}
|
|
} else if (sc.state == SCE_SN_PREPROCESSOR) {
|
|
if (IsASpace(sc.ch)) {
|
|
sc.SetState(SCE_SN_CODE);
|
|
}
|
|
} else if (sc.state == SCE_SN_DEFAULT) {
|
|
if (sc.Match('<', '\'')) {
|
|
sc.Forward();
|
|
sc.ForwardSetState(SCE_SN_CODE);
|
|
}
|
|
} else if (sc.state == SCE_SN_COMMENTLINE || sc.state == SCE_SN_COMMENTLINEBANG) {
|
|
if (sc.atLineEnd) {
|
|
sc.SetState(SCE_SN_CODE);
|
|
visibleChars = 0;
|
|
}
|
|
} else if (sc.state == SCE_SN_STRING) {
|
|
if (sc.ch == '\\') {
|
|
if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
|
|
sc.Forward();
|
|
}
|
|
} else if (sc.ch == '\"') {
|
|
sc.ForwardSetState(SCE_SN_CODE);
|
|
} else if (sc.atLineEnd) {
|
|
sc.ChangeState(SCE_SN_STRINGEOL);
|
|
sc.ForwardSetState(SCE_SN_CODE);
|
|
visibleChars = 0;
|
|
}
|
|
} else if (sc.state == SCE_SN_SIGNAL) {
|
|
if (sc.atLineEnd) {
|
|
sc.ChangeState(SCE_SN_STRINGEOL);
|
|
sc.ForwardSetState(SCE_SN_CODE);
|
|
visibleChars = 0;
|
|
} else if (sc.ch == '\\') {
|
|
if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
|
|
sc.Forward();
|
|
}
|
|
} else if (sc.ch == '\'') {
|
|
sc.ForwardSetState(SCE_SN_CODE);
|
|
}
|
|
} else if (sc.state == SCE_SN_REGEXTAG) {
|
|
if (!IsADigit(sc.ch)) {
|
|
sc.SetState(SCE_SN_CODE);
|
|
}
|
|
}
|
|
|
|
// Determine if a new state should be entered.
|
|
if (sc.state == SCE_SN_CODE) {
|
|
if (sc.ch == '$' && IsADigit(sc.chNext)) {
|
|
sc.SetState(SCE_SN_REGEXTAG);
|
|
sc.Forward();
|
|
} else if (IsADigit(sc.ch)) {
|
|
sc.SetState(SCE_SN_NUMBER);
|
|
} else if (IsAWordStart(sc.ch)) {
|
|
sc.SetState(SCE_SN_IDENTIFIER);
|
|
} else if (sc.Match('\'', '>')) {
|
|
sc.SetState(SCE_SN_DEFAULT);
|
|
sc.Forward(); // Eat the * so it isn't used for the end of the comment
|
|
} else if (sc.Match('/', '/')) {
|
|
if (sc.Match("//!")) // Nice to have a different comment style
|
|
sc.SetState(SCE_SN_COMMENTLINEBANG);
|
|
else
|
|
sc.SetState(SCE_SN_COMMENTLINE);
|
|
} else if (sc.Match('-', '-')) {
|
|
if (sc.Match("--!")) // Nice to have a different comment style
|
|
sc.SetState(SCE_SN_COMMENTLINEBANG);
|
|
else
|
|
sc.SetState(SCE_SN_COMMENTLINE);
|
|
} else if (sc.ch == '\"') {
|
|
sc.SetState(SCE_SN_STRING);
|
|
} else if (sc.ch == '\'') {
|
|
sc.SetState(SCE_SN_SIGNAL);
|
|
} else if (sc.ch == '#' && visibleChars == 0) {
|
|
// Preprocessor commands are alone on their line
|
|
sc.SetState(SCE_SN_PREPROCESSOR);
|
|
// Skip whitespace between # and preprocessor word
|
|
do {
|
|
sc.Forward();
|
|
} while ((sc.ch == ' ' || sc.ch == '\t') && sc.More());
|
|
if (sc.atLineEnd) {
|
|
sc.SetState(SCE_SN_CODE);
|
|
}
|
|
} else if (isoperator(static_cast<char>(sc.ch)) || sc.ch == '@') {
|
|
sc.SetState(SCE_SN_OPERATOR);
|
|
}
|
|
}
|
|
|
|
if (sc.atLineEnd) {
|
|
// Reset states to begining of colourise so no surprises
|
|
// if different sets of lines lexed.
|
|
visibleChars = 0;
|
|
}
|
|
if (!IsASpace(sc.ch)) {
|
|
visibleChars++;
|
|
}
|
|
}
|
|
sc.Complete();
|
|
}
|
|
|
|
// Store both the current line's fold level and the next lines in the
|
|
// level store to make it easy to pick up with each increment
|
|
// and to make it possible to fiddle the current level for "} else {".
|
|
static void FoldNoBoxSpecmanDoc(unsigned int startPos, int length, int,
|
|
Accessor &styler) {
|
|
bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
|
|
bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
|
|
bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
|
|
unsigned int endPos = startPos + length;
|
|
int visibleChars = 0;
|
|
int lineCurrent = styler.GetLine(startPos);
|
|
int levelCurrent = SC_FOLDLEVELBASE;
|
|
if (lineCurrent > 0)
|
|
levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
|
|
int levelMinCurrent = levelCurrent;
|
|
int levelNext = levelCurrent;
|
|
char chNext = styler[startPos];
|
|
int styleNext = styler.StyleAt(startPos);
|
|
int style;
|
|
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_SN_COMMENTLINE)) {
|
|
if (((ch == '/') && (chNext == '/')) ||
|
|
((ch == '-') && (chNext == '-'))) {
|
|
char chNext2 = styler.SafeGetCharAt(i + 2);
|
|
if (chNext2 == '{') {
|
|
levelNext++;
|
|
} else if (chNext2 == '}') {
|
|
levelNext--;
|
|
}
|
|
}
|
|
}
|
|
if (style == SCE_SN_OPERATOR) {
|
|
if (ch == '{') {
|
|
// Measure the minimum before a '{' to allow
|
|
// folding on "} else {"
|
|
if (levelMinCurrent > levelNext) {
|
|
levelMinCurrent = levelNext;
|
|
}
|
|
levelNext++;
|
|
} else if (ch == '}') {
|
|
levelNext--;
|
|
}
|
|
}
|
|
if (atEOL) {
|
|
int levelUse = levelCurrent;
|
|
if (foldAtElse) {
|
|
levelUse = levelMinCurrent;
|
|
}
|
|
int lev = levelUse | levelNext << 16;
|
|
if (visibleChars == 0 && foldCompact)
|
|
lev |= SC_FOLDLEVELWHITEFLAG;
|
|
if (levelUse < levelNext)
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
if (lev != styler.LevelAt(lineCurrent)) {
|
|
styler.SetLevel(lineCurrent, lev);
|
|
}
|
|
lineCurrent++;
|
|
levelCurrent = levelNext;
|
|
levelMinCurrent = levelCurrent;
|
|
visibleChars = 0;
|
|
}
|
|
if (!isspacechar(ch))
|
|
visibleChars++;
|
|
}
|
|
}
|
|
|
|
static void FoldSpecmanDoc(unsigned int startPos, int length, int initStyle, WordList *[],
|
|
Accessor &styler) {
|
|
FoldNoBoxSpecmanDoc(startPos, length, initStyle, styler);
|
|
}
|
|
|
|
static const char * const specmanWordLists[] = {
|
|
"Primary keywords and identifiers",
|
|
"Secondary keywords and identifiers",
|
|
"Sequence keywords and identifiers",
|
|
"User defined keywords and identifiers",
|
|
"Unused",
|
|
0,
|
|
};
|
|
|
|
static void ColouriseSpecmanDocSensitive(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
|
|
Accessor &styler) {
|
|
ColouriseSpecmanDoc(startPos, length, initStyle, keywordlists, styler, true);
|
|
}
|
|
|
|
|
|
LexerModule lmSpecman(SCLEX_SPECMAN, ColouriseSpecmanDocSensitive, "specman", FoldSpecmanDoc, specmanWordLists);
|