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.
226 lines
6.9 KiB
226 lines
6.9 KiB
// Scintilla source code edit control |
|
/** @file LexFlagShip.cxx |
|
** Lexer for FlagShip |
|
** (Syntactically compatible to other XBase dialects, like dBase, Clipper, Fox etc.) |
|
**/ |
|
// Copyright 2005 by Randy Butler |
|
// Copyright 1998-2003 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 <ctype.h> |
|
#include <stdio.h> |
|
#include <stdarg.h> |
|
|
|
#include "Platform.h" |
|
|
|
#include "PropSet.h" |
|
#include "Accessor.h" |
|
#include "StyleContext.h" |
|
#include "KeyWords.h" |
|
#include "Scintilla.h" |
|
#include "SciLexer.h" |
|
|
|
static bool IsFlagShipComment(Accessor &styler, int pos, int len) { |
|
return len>0 && styler[pos]=='\''; |
|
} |
|
|
|
static inline bool IsTypeCharacter(int ch) { |
|
return ch == '%' || ch == '&' || ch == '@' || ch == '!' || ch == '#' || ch == '$'; |
|
} |
|
|
|
// Extended to accept accented characters |
|
static inline bool IsAWordChar(int ch) { |
|
return ch >= 0x80 || |
|
(isalnum(ch) || ch == '.' || ch == '_'); |
|
} |
|
|
|
static inline bool IsAWordStart(int ch) { |
|
return ch >= 0x80 || |
|
(isalnum(ch) || ch == '_'); |
|
} |
|
|
|
static inline bool IsADateCharacter(const int ch) { |
|
return (ch < 0x80) && |
|
(isalnum(ch) || ch == '|' || ch == '-' || ch == '/' || ch == ':' || ch == ' ' || ch == '\t'); |
|
} |
|
|
|
|
|
static void ColouriseFlagShipDoc(unsigned int startPos, int length, int initStyle, |
|
WordList *keywordlists[], Accessor &styler) { |
|
|
|
//bool FSScriptSyntax = true; |
|
WordList &keywords = *keywordlists[0]; |
|
WordList &keywords2 = *keywordlists[1]; |
|
WordList &keywords3 = *keywordlists[2]; |
|
WordList &keywords4 = *keywordlists[3]; |
|
|
|
styler.StartAt(startPos); |
|
|
|
int visibleChars = 0; |
|
|
|
StyleContext sc(startPos, length, initStyle, styler); |
|
|
|
for (; sc.More(); sc.Forward()) { |
|
|
|
if (sc.state == SCE_FS_OPERATOR) { |
|
sc.SetState(SCE_FS_DEFAULT); |
|
} else if (sc.state == SCE_FS_IDENTIFIER) { |
|
if (!IsAWordChar(sc.ch)) { |
|
char s[100]; |
|
sc.GetCurrentLowered(s, sizeof(s)); |
|
if (keywords.InList(s)) { |
|
sc.ChangeState(SCE_FS_KEYWORD); |
|
} else if (keywords2.InList(s)) { |
|
sc.ChangeState(SCE_FS_KEYWORD2); |
|
} else if (keywords3.InList(s)) { |
|
sc.ChangeState(SCE_FS_KEYWORD3); |
|
} else if (keywords4.InList(s)) { |
|
sc.ChangeState(SCE_FS_KEYWORD4); |
|
}// Else, it is really an identifier... |
|
sc.SetState(SCE_FS_DEFAULT); |
|
} |
|
} else if (sc.state == SCE_FS_NUMBER) { |
|
if (!IsAWordChar(sc.ch)) { |
|
sc.SetState(SCE_FS_DEFAULT); |
|
} |
|
} else if (sc.state == SCE_FS_STRING) { |
|
// VB doubles quotes to preserve them, so just end this string |
|
// state now as a following quote will start again |
|
if (sc.ch == '\"') { |
|
if (tolower(sc.chNext) == 'c') { |
|
sc.Forward(); |
|
} |
|
sc.ForwardSetState(SCE_FS_DEFAULT); |
|
} else if (sc.atLineEnd) { |
|
sc.ChangeState(SCE_FS_STRINGEOL); |
|
sc.ForwardSetState(SCE_FS_DEFAULT); |
|
} |
|
} else if (sc.state == SCE_FS_COMMENT) { |
|
if (sc.Match('*', '/')) { // new code |
|
sc.Forward(); |
|
sc.ForwardSetState(SCE_FS_DEFAULT); |
|
//if (sc.atLineEnd) { // old code |
|
// sc.SetState(SCE_FS_DEFAULT); |
|
} |
|
} else if (sc.state == SCE_FS_COMMENTLINE) { //new code |
|
if (sc.ch == '\r' || sc.ch == '\n') { |
|
sc.SetState(SCE_FS_DEFAULT); |
|
visibleChars = 0; |
|
} |
|
} else if (sc.state == SCE_FS_PREPROCESSOR) { |
|
if (sc.atLineEnd) { |
|
sc.SetState(SCE_FS_DEFAULT); |
|
} |
|
} else if (sc.state == SCE_FS_DATE) { |
|
if (sc.ch == '#' || !IsADateCharacter(sc.chNext)) { |
|
sc.ForwardSetState(SCE_FS_DEFAULT); |
|
} |
|
} |
|
|
|
// Determine if a new state should be entered. |
|
if (sc.state == SCE_FS_DEFAULT) { |
|
if (sc.Match('/', '*')) { // New code |
|
sc.SetState(SCE_FS_COMMENT); |
|
sc.Forward(); // Eat the * so it isn't used for the end of the comment |
|
//if (sc.ch == '\'') { // Old code |
|
// sc.SetState(SCE_FS_COMMENT); // old code |
|
} else if (sc.Match('/', '/')) { // New code |
|
sc.SetState(SCE_FS_COMMENTLINE); |
|
} else if (sc.ch == '\"') { |
|
sc.SetState(SCE_FS_STRING); |
|
} else if (sc.ch == '#' && visibleChars == 0) { |
|
// Preprocessor commands are alone on their line |
|
sc.SetState(SCE_FS_PREPROCESSOR); |
|
} else if (sc.ch == '#') { |
|
int n = 1; |
|
int chSeek = ' '; |
|
while ((n < 100) && (chSeek == ' ' || chSeek == '\t')) { |
|
chSeek = sc.GetRelative(n); |
|
n++; |
|
} |
|
if (IsADigit(chSeek)) { |
|
sc.SetState(SCE_FS_DATE); |
|
} else { |
|
sc.SetState(SCE_FS_OPERATOR); |
|
} |
|
} else if (sc.ch == '&' && tolower(sc.chNext) == 'h') { |
|
sc.SetState(SCE_FS_NUMBER); |
|
} else if (sc.ch == '&' && tolower(sc.chNext) == 'o') { |
|
sc.SetState(SCE_FS_NUMBER); |
|
} else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) { |
|
sc.SetState(SCE_FS_NUMBER); |
|
} else if (IsAWordStart(sc.ch) || (sc.ch == '[')) { |
|
sc.SetState(SCE_FS_IDENTIFIER); |
|
} else if (isoperator(static_cast<char>(sc.ch)) || (sc.ch == '\\')) { |
|
sc.SetState(SCE_FS_OPERATOR); |
|
} |
|
} |
|
|
|
if (sc.atLineEnd) { |
|
visibleChars = 0; |
|
} |
|
if (!IsASpace(sc.ch)) { |
|
visibleChars++; |
|
} |
|
} |
|
sc.Complete(); |
|
} |
|
|
|
static void FoldFlagShipDoc(unsigned int startPos, int length, int, |
|
WordList *[], Accessor &styler) { |
|
|
|
int endPos = startPos + length; |
|
|
|
// Backtrack to previous line in case need to fix its fold status |
|
int lineCurrent = styler.GetLine(startPos); |
|
if (startPos > 0) { |
|
if (lineCurrent > 0) { |
|
lineCurrent--; |
|
startPos = styler.LineStart(lineCurrent); |
|
} |
|
} |
|
int spaceFlags = 0; |
|
int indentCurrent = styler.IndentAmount(lineCurrent, &spaceFlags, IsFlagShipComment); |
|
char chNext = styler[startPos]; |
|
for (int i = startPos; i < endPos; i++) { |
|
char ch = chNext; |
|
chNext = styler.SafeGetCharAt(i + 1); |
|
|
|
if ((ch == '\r' && chNext != '\n') || (ch == '\n') || (i == endPos)) { |
|
int lev = indentCurrent; |
|
int indentNext = styler.IndentAmount(lineCurrent + 1, &spaceFlags, IsFlagShipComment); |
|
if (!(indentCurrent & SC_FOLDLEVELWHITEFLAG)) { |
|
// Only non whitespace lines can be headers |
|
if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext & SC_FOLDLEVELNUMBERMASK)) { |
|
lev |= SC_FOLDLEVELHEADERFLAG; |
|
} else if (indentNext & SC_FOLDLEVELWHITEFLAG) { |
|
// Line after is blank so check the next - maybe should continue further? |
|
int spaceFlags2 = 0; |
|
int indentNext2 = styler.IndentAmount(lineCurrent + 2, &spaceFlags2, IsFlagShipComment); |
|
if ((indentCurrent & SC_FOLDLEVELNUMBERMASK) < (indentNext2 & SC_FOLDLEVELNUMBERMASK)) { |
|
lev |= SC_FOLDLEVELHEADERFLAG; |
|
} |
|
} |
|
} |
|
indentCurrent = indentNext; |
|
styler.SetLevel(lineCurrent, lev); |
|
lineCurrent++; |
|
} |
|
} |
|
} |
|
|
|
|
|
static const char * const FSWordListDesc[] = { |
|
"Keywords", |
|
"functions", |
|
"user2", |
|
"user3", |
|
0 |
|
}; |
|
|
|
LexerModule lmFlagShip(SCLEX_FLAGSHIP, ColouriseFlagShipDoc, "flagship", FoldFlagShipDoc, FSWordListDesc); |
|
|
|
|
|
|
|
|