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316 lines
8.8 KiB
316 lines
8.8 KiB
// Scintilla source code edit control
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// Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
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// @file LexGui4Cli.cxx
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/*
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This is the Lexer for Gui4Cli, included in SciLexer.dll
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- by d. Keletsekis, 2/10/2003
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To add to SciLexer.dll:
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1. Add the values below to INCLUDE\Scintilla.iface
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2. Run the scripts/HFacer.py script
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3. Run the scripts/LexGen.py script
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val SCE_GC_DEFAULT=0
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val SCE_GC_COMMENTLINE=1
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val SCE_GC_COMMENTBLOCK=2
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val SCE_GC_GLOBAL=3
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val SCE_GC_EVENT=4
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val SCE_GC_ATTRIBUTE=5
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val SCE_GC_CONTROL=6
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val SCE_GC_COMMAND=7
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val SCE_GC_STRING=8
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val SCE_GC_OPERATOR=9
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <ctype.h>
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#include <string>
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#include <string_view>
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#include "ILexer.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#include "WordList.h"
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#include "LexAccessor.h"
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#include "Accessor.h"
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#include "StyleContext.h"
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#include "CharacterSet.h"
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#include "LexerModule.h"
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using namespace Lexilla;
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#define debug Platform::DebugPrintf
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static inline bool IsAWordChar(const int ch) {
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return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_' || ch =='\\');
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}
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inline bool isGCOperator(int ch)
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{ if (isalnum(ch))
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return false;
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// '.' left out as it is used to make up numbers
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if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
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ch == '(' || ch == ')' || ch == '=' || ch == '%' ||
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ch == '[' || ch == ']' || ch == '<' || ch == '>' ||
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ch == ',' || ch == ';' || ch == ':')
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return true;
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return false;
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}
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#define isSpace(x) ((x)==' ' || (x)=='\t')
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#define isNL(x) ((x)=='\n' || (x)=='\r')
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#define isSpaceOrNL(x) (isSpace(x) || isNL(x))
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#define BUFFSIZE 500
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#define isFoldPoint(x) ((styler.LevelAt(x) & SC_FOLDLEVELNUMBERMASK) == 1024)
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static void colorFirstWord(WordList *keywordlists[], Accessor &styler,
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StyleContext *sc, char *buff, Sci_Position length, Sci_Position)
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{
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Sci_Position c = 0;
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while (sc->More() && isSpaceOrNL(sc->ch))
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{ sc->Forward();
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}
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styler.ColourTo(sc->currentPos - 1, sc->state);
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if (!IsAWordChar(sc->ch)) // comment, marker, etc..
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return;
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while (sc->More() && !isSpaceOrNL(sc->ch) && (c < length-1) && !isGCOperator(sc->ch))
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{ buff[c] = static_cast<char>(sc->ch);
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++c; sc->Forward();
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}
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buff[c] = '\0';
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char *p = buff;
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while (*p) // capitalize..
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{ if (islower(*p)) *p = static_cast<char>(toupper(*p));
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++p;
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}
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WordList &kGlobal = *keywordlists[0]; // keyword lists set by the user
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WordList &kEvent = *keywordlists[1];
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WordList &kAttribute = *keywordlists[2];
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WordList &kControl = *keywordlists[3];
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WordList &kCommand = *keywordlists[4];
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int state = 0;
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// int level = styler.LevelAt(line) & SC_FOLDLEVELNUMBERMASK;
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// debug ("line = %d, level = %d", line, level);
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if (kGlobal.InList(buff)) state = SCE_GC_GLOBAL;
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else if (kAttribute.InList(buff)) state = SCE_GC_ATTRIBUTE;
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else if (kControl.InList(buff)) state = SCE_GC_CONTROL;
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else if (kCommand.InList(buff)) state = SCE_GC_COMMAND;
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else if (kEvent.InList(buff)) state = SCE_GC_EVENT;
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if (state)
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{ sc->ChangeState(state);
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styler.ColourTo(sc->currentPos - 1, sc->state);
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sc->ChangeState(SCE_GC_DEFAULT);
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}
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else
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{ sc->ChangeState(SCE_GC_DEFAULT);
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styler.ColourTo(sc->currentPos - 1, sc->state);
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}
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}
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// Main colorizing function called by Scintilla
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static void
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ColouriseGui4CliDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
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WordList *keywordlists[], Accessor &styler)
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{
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styler.StartAt(startPos);
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Sci_Position currentline = styler.GetLine(startPos);
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int quotestart = 0, oldstate;
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styler.StartSegment(startPos);
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bool noforward;
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char buff[BUFFSIZE+1]; // buffer for command name
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StyleContext sc(startPos, length, initStyle, styler);
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buff[0] = '\0'; // cbuff = 0;
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if (sc.state != SCE_GC_COMMENTBLOCK) // colorize 1st word..
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colorFirstWord(keywordlists, styler, &sc, buff, BUFFSIZE, currentline);
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while (sc.More())
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{ noforward = 0;
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switch (sc.ch)
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{
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case '/':
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if (sc.state == SCE_GC_COMMENTBLOCK || sc.state == SCE_GC_STRING)
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break;
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if (sc.chNext == '/') // line comment
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{ sc.SetState (SCE_GC_COMMENTLINE);
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sc.Forward();
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styler.ColourTo(sc.currentPos, sc.state);
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}
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else if (sc.chNext == '*') // block comment
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{ sc.SetState(SCE_GC_COMMENTBLOCK);
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sc.Forward();
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styler.ColourTo(sc.currentPos, sc.state);
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}
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else
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styler.ColourTo(sc.currentPos, sc.state);
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break;
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case '*': // end of comment block, or operator..
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if (sc.state == SCE_GC_STRING)
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break;
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if (sc.state == SCE_GC_COMMENTBLOCK && sc.chNext == '/')
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{ sc.Forward();
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styler.ColourTo(sc.currentPos, sc.state);
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sc.ChangeState (SCE_GC_DEFAULT);
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}
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else
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styler.ColourTo(sc.currentPos, sc.state);
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break;
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case '\'': case '\"': // strings..
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if (sc.state == SCE_GC_COMMENTBLOCK || sc.state == SCE_GC_COMMENTLINE)
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break;
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if (sc.state == SCE_GC_STRING)
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{ if (sc.ch == quotestart) // match same quote char..
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{ styler.ColourTo(sc.currentPos, sc.state);
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sc.ChangeState(SCE_GC_DEFAULT);
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quotestart = 0;
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} }
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else
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{ styler.ColourTo(sc.currentPos - 1, sc.state);
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sc.ChangeState(SCE_GC_STRING);
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quotestart = sc.ch;
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}
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break;
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case ';': // end of commandline character
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if (sc.state != SCE_GC_COMMENTBLOCK && sc.state != SCE_GC_COMMENTLINE &&
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sc.state != SCE_GC_STRING)
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{
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styler.ColourTo(sc.currentPos - 1, sc.state);
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styler.ColourTo(sc.currentPos, SCE_GC_OPERATOR);
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sc.ChangeState(SCE_GC_DEFAULT);
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sc.Forward();
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colorFirstWord(keywordlists, styler, &sc, buff, BUFFSIZE, currentline);
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noforward = 1; // don't move forward - already positioned at next char..
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}
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break;
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case '+': case '-': case '=': case '!': // operators..
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case '<': case '>': case '&': case '|': case '$':
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if (sc.state != SCE_GC_COMMENTBLOCK && sc.state != SCE_GC_COMMENTLINE &&
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sc.state != SCE_GC_STRING)
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{
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styler.ColourTo(sc.currentPos - 1, sc.state);
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styler.ColourTo(sc.currentPos, SCE_GC_OPERATOR);
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sc.ChangeState(SCE_GC_DEFAULT);
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}
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break;
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case '\\': // escape - same as operator, but also mark in strings..
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if (sc.state != SCE_GC_COMMENTBLOCK && sc.state != SCE_GC_COMMENTLINE)
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{
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oldstate = sc.state;
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styler.ColourTo(sc.currentPos - 1, sc.state);
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sc.Forward(); // mark also the next char..
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styler.ColourTo(sc.currentPos, SCE_GC_OPERATOR);
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sc.ChangeState(oldstate);
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}
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break;
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case '\n': case '\r':
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++currentline;
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if (sc.state == SCE_GC_COMMENTLINE)
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{ styler.ColourTo(sc.currentPos, sc.state);
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sc.ChangeState (SCE_GC_DEFAULT);
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}
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else if (sc.state != SCE_GC_COMMENTBLOCK)
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{ colorFirstWord(keywordlists, styler, &sc, buff, BUFFSIZE, currentline);
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noforward = 1; // don't move forward - already positioned at next char..
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}
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break;
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// case ' ': case '\t':
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// default :
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}
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if (!noforward) sc.Forward();
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}
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sc.Complete();
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}
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// Main folding function called by Scintilla - (based on props (.ini) files function)
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static void FoldGui4Cli(Sci_PositionU startPos, Sci_Position length, int,
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WordList *[], Accessor &styler)
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{
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bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
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Sci_PositionU endPos = startPos + length;
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int visibleChars = 0;
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Sci_Position lineCurrent = styler.GetLine(startPos);
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char chNext = styler[startPos];
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int styleNext = styler.StyleAt(startPos);
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bool headerPoint = false;
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for (Sci_PositionU i = startPos; i < endPos; i++)
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{
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char ch = chNext;
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chNext = styler[i+1];
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int style = styleNext;
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styleNext = styler.StyleAt(i + 1);
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bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
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if (style == SCE_GC_EVENT || style == SCE_GC_GLOBAL)
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{ headerPoint = true; // fold at events and globals
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}
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if (atEOL)
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{ int lev = SC_FOLDLEVELBASE+1;
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if (headerPoint)
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lev = SC_FOLDLEVELBASE;
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if (visibleChars == 0 && foldCompact)
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lev |= SC_FOLDLEVELWHITEFLAG;
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if (headerPoint)
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lev |= SC_FOLDLEVELHEADERFLAG;
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if (lev != styler.LevelAt(lineCurrent)) // set level, if not already correct
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{ styler.SetLevel(lineCurrent, lev);
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}
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lineCurrent++; // re-initialize our flags
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visibleChars = 0;
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headerPoint = false;
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}
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if (!(isspacechar(ch))) // || (style == SCE_GC_COMMENTLINE) || (style != SCE_GC_COMMENTBLOCK)))
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visibleChars++;
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}
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int lev = headerPoint ? SC_FOLDLEVELBASE : SC_FOLDLEVELBASE+1;
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int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
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styler.SetLevel(lineCurrent, lev | flagsNext);
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}
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// I have no idea what these are for.. probably accessible by some message.
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static const char * const gui4cliWordListDesc[] = {
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"Globals", "Events", "Attributes", "Control", "Commands",
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0
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};
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// Declare language & pass our function pointers to Scintilla
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extern const LexerModule lmGui4Cli(SCLEX_GUI4CLI, ColouriseGui4CliDoc, "gui4cli", FoldGui4Cli, gui4cliWordListDesc);
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#undef debug
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