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Diffstat (limited to 'src/LexRebol.cxx')
| -rw-r--r-- | src/LexRebol.cxx | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/src/LexRebol.cxx b/src/LexRebol.cxx deleted file mode 100644 index 7139b8dbd..000000000 --- a/src/LexRebol.cxx +++ /dev/null @@ -1,322 +0,0 @@ -// Scintilla source code edit control -/** @file LexRebol.cxx - ** Lexer for REBOL. - ** Written by Pascal Hurni, inspired from LexLua by Paul Winwood & Marcos E. Wurzius & Philippe Lhoste - ** - ** History: - ** 2005-04-07 First release. - ** 2005-04-10 Closing parens and brackets go now in default style - ** String and comment nesting should be more safe - **/ -// Copyright 2005 by Pascal Hurni <pascal_hurni@fastmail.fm> -// 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 "KeyWords.h" -#include "Scintilla.h" -#include "SciLexer.h" -#include "StyleContext.h" - -#ifdef SCI_NAMESPACE -using namespace Scintilla; -#endif - -static inline bool IsAWordChar(const int ch) { - return (isalnum(ch) || ch == '?' || ch == '!' || ch == '.' || ch == '\'' || ch == '+' || ch == '-' || ch == '*' || ch == '&' || ch == '|' || ch == '=' || ch == '_' || ch == '~'); -} - -static inline bool IsAWordStart(const int ch, const int ch2) { - return ((ch == '+' || ch == '-' || ch == '.') && !isdigit(ch2)) || - (isalpha(ch) || ch == '?' || ch == '!' || ch == '\'' || ch == '*' || ch == '&' || ch == '|' || ch == '=' || ch == '_' || ch == '~'); -} - -static inline bool IsAnOperator(const int ch, const int ch2, const int ch3) { - // One char operators - if (IsASpaceOrTab(ch2)) { - return ch == '+' || ch == '-' || ch == '*' || ch == '/' || ch == '<' || ch == '>' || ch == '=' || ch == '?'; - } - - // Two char operators - if (IsASpaceOrTab(ch3)) { - return (ch == '*' && ch2 == '*') || - (ch == '/' && ch2 == '/') || - (ch == '<' && (ch2 == '=' || ch2 == '>')) || - (ch == '>' && ch2 == '=') || - (ch == '=' && (ch2 == '=' || ch2 == '?')) || - (ch == '?' && ch2 == '?'); - } - - return false; -} - -static inline bool IsBinaryStart(const int ch, const int ch2, const int ch3, const int ch4) { - return (ch == '#' && ch2 == '{') || - (IsADigit(ch) && ch2 == '#' && ch3 == '{' ) || - (IsADigit(ch) && IsADigit(ch2) && ch3 == '#' && ch4 == '{' ); -} - - -static void ColouriseRebolDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[], Accessor &styler) { - - WordList &keywords = *keywordlists[0]; - WordList &keywords2 = *keywordlists[1]; - WordList &keywords3 = *keywordlists[2]; - WordList &keywords4 = *keywordlists[3]; - WordList &keywords5 = *keywordlists[4]; - WordList &keywords6 = *keywordlists[5]; - WordList &keywords7 = *keywordlists[6]; - WordList &keywords8 = *keywordlists[7]; - - int currentLine = styler.GetLine(startPos); - // Initialize the braced string {.. { ... } ..} nesting level, if we are inside such a string. - int stringLevel = 0; - if (initStyle == SCE_REBOL_BRACEDSTRING || initStyle == SCE_REBOL_COMMENTBLOCK) { - stringLevel = styler.GetLineState(currentLine - 1); - } - - bool blockComment = initStyle == SCE_REBOL_COMMENTBLOCK; - int dotCount = 0; - - // Do not leak onto next line - if (initStyle == SCE_REBOL_COMMENTLINE) { - initStyle = SCE_REBOL_DEFAULT; - } - - StyleContext sc(startPos, length, initStyle, styler); - if (startPos == 0) { - sc.SetState(SCE_REBOL_PREFACE); - } - for (; sc.More(); sc.Forward()) { - - //--- What to do at line end ? - if (sc.atLineEnd) { - // Can be either inside a {} string or simply at eol - if (sc.state != SCE_REBOL_BRACEDSTRING && sc.state != SCE_REBOL_COMMENTBLOCK && - sc.state != SCE_REBOL_BINARY && sc.state != SCE_REBOL_PREFACE) - sc.SetState(SCE_REBOL_DEFAULT); - - // Update the line state, so it can be seen by next line - currentLine = styler.GetLine(sc.currentPos); - switch (sc.state) { - case SCE_REBOL_BRACEDSTRING: - case SCE_REBOL_COMMENTBLOCK: - // Inside a braced string, we set the line state - styler.SetLineState(currentLine, stringLevel); - break; - default: - // Reset the line state - styler.SetLineState(currentLine, 0); - break; - } - - // continue with next char - continue; - } - - //--- What to do on white-space ? - if (IsASpaceOrTab(sc.ch)) - { - // Return to default if any of these states - if (sc.state == SCE_REBOL_OPERATOR || sc.state == SCE_REBOL_CHARACTER || - sc.state == SCE_REBOL_NUMBER || sc.state == SCE_REBOL_PAIR || - sc.state == SCE_REBOL_TUPLE || sc.state == SCE_REBOL_FILE || - sc.state == SCE_REBOL_DATE || sc.state == SCE_REBOL_TIME || - sc.state == SCE_REBOL_MONEY || sc.state == SCE_REBOL_ISSUE || - sc.state == SCE_REBOL_URL || sc.state == SCE_REBOL_EMAIL) { - sc.SetState(SCE_REBOL_DEFAULT); - } - } - - //--- Specialize state ? - // URL, Email look like identifier - if (sc.state == SCE_REBOL_IDENTIFIER) - { - if (sc.ch == ':' && !IsASpace(sc.chNext)) { - sc.ChangeState(SCE_REBOL_URL); - } else if (sc.ch == '@') { - sc.ChangeState(SCE_REBOL_EMAIL); - } else if (sc.ch == '$') { - sc.ChangeState(SCE_REBOL_MONEY); - } - } - // Words look like identifiers - if (sc.state == SCE_REBOL_IDENTIFIER || (sc.state >= SCE_REBOL_WORD && sc.state <= SCE_REBOL_WORD8)) { - // Keywords ? - if (!IsAWordChar(sc.ch) || sc.Match('/')) { - char s[100]; - sc.GetCurrentLowered(s, sizeof(s)); - blockComment = strcmp(s, "comment") == 0; - if (keywords8.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD8); - } else if (keywords7.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD7); - } else if (keywords6.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD6); - } else if (keywords5.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD5); - } else if (keywords4.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD4); - } else if (keywords3.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD3); - } else if (keywords2.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD2); - } else if (keywords.InList(s)) { - sc.ChangeState(SCE_REBOL_WORD); - } - // Keep same style if there are refinements - if (!sc.Match('/')) { - sc.SetState(SCE_REBOL_DEFAULT); - } - } - // special numbers - } else if (sc.state == SCE_REBOL_NUMBER) { - switch (sc.ch) { - case 'x': sc.ChangeState(SCE_REBOL_PAIR); - break; - case ':': sc.ChangeState(SCE_REBOL_TIME); - break; - case '-': - case '/': sc.ChangeState(SCE_REBOL_DATE); - break; - case '.': if (++dotCount >= 2) sc.ChangeState(SCE_REBOL_TUPLE); - break; - } - } - - //--- Determine if the current state should terminate - if (sc.state == SCE_REBOL_QUOTEDSTRING || sc.state == SCE_REBOL_CHARACTER) { - if (sc.ch == '^' && sc.chNext == '\"') { - sc.Forward(); - } else if (sc.ch == '\"') { - sc.ForwardSetState(SCE_REBOL_DEFAULT); - } - } else if (sc.state == SCE_REBOL_BRACEDSTRING || sc.state == SCE_REBOL_COMMENTBLOCK) { - if (sc.ch == '}') { - if (--stringLevel == 0) { - sc.ForwardSetState(SCE_REBOL_DEFAULT); - } - } else if (sc.ch == '{') { - stringLevel++; - } - } else if (sc.state == SCE_REBOL_BINARY) { - if (sc.ch == '}') { - sc.ForwardSetState(SCE_REBOL_DEFAULT); - } - } else if (sc.state == SCE_REBOL_TAG) { - if (sc.ch == '>') { - sc.ForwardSetState(SCE_REBOL_DEFAULT); - } - } else if (sc.state == SCE_REBOL_PREFACE) { - if (sc.MatchIgnoreCase("rebol")) - { - int i; - for (i=5; IsASpaceOrTab(styler.SafeGetCharAt(sc.currentPos+i, 0)); i++); - if (sc.GetRelative(i) == '[') - sc.SetState(SCE_REBOL_DEFAULT); - } - } - - //--- Parens and bracket changes to default style when the current is a number - if (sc.state == SCE_REBOL_NUMBER || sc.state == SCE_REBOL_PAIR || sc.state == SCE_REBOL_TUPLE || - sc.state == SCE_REBOL_MONEY || sc.state == SCE_REBOL_ISSUE || sc.state == SCE_REBOL_EMAIL || - sc.state == SCE_REBOL_URL || sc.state == SCE_REBOL_DATE || sc.state == SCE_REBOL_TIME) { - if (sc.ch == '(' || sc.ch == '[' || sc.ch == ')' || sc.ch == ']') { - sc.SetState(SCE_REBOL_DEFAULT); - } - } - - //--- Determine if a new state should be entered. - if (sc.state == SCE_REBOL_DEFAULT) { - if (IsAnOperator(sc.ch, sc.chNext, sc.GetRelative(2))) { - sc.SetState(SCE_REBOL_OPERATOR); - } else if (IsBinaryStart(sc.ch, sc.chNext, sc.GetRelative(2), sc.GetRelative(3))) { - sc.SetState(SCE_REBOL_BINARY); - } else if (IsAWordStart(sc.ch, sc.chNext)) { - sc.SetState(SCE_REBOL_IDENTIFIER); - } else if (IsADigit(sc.ch) || sc.ch == '+' || sc.ch == '-' || /*Decimal*/ sc.ch == '.' || sc.ch == ',') { - dotCount = 0; - sc.SetState(SCE_REBOL_NUMBER); - } else if (sc.ch == '\"') { - sc.SetState(SCE_REBOL_QUOTEDSTRING); - } else if (sc.ch == '{') { - sc.SetState(blockComment ? SCE_REBOL_COMMENTBLOCK : SCE_REBOL_BRACEDSTRING); - ++stringLevel; - } else if (sc.ch == ';') { - sc.SetState(SCE_REBOL_COMMENTLINE); - } else if (sc.ch == '$') { - sc.SetState(SCE_REBOL_MONEY); - } else if (sc.ch == '%') { - sc.SetState(SCE_REBOL_FILE); - } else if (sc.ch == '<') { - sc.SetState(SCE_REBOL_TAG); - } else if (sc.ch == '#' && sc.chNext == '"') { - sc.SetState(SCE_REBOL_CHARACTER); - sc.Forward(); - } else if (sc.ch == '#' && sc.chNext != '"' && sc.chNext != '{' ) { - sc.SetState(SCE_REBOL_ISSUE); - } - } - } - sc.Complete(); -} - - -static void FoldRebolDoc(unsigned int startPos, int length, int /* initStyle */, WordList *[], - Accessor &styler) { - unsigned int lengthDoc = 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); - for (unsigned int i = startPos; i < lengthDoc; i++) { - char ch = chNext; - chNext = styler.SafeGetCharAt(i + 1); - int style = styleNext; - styleNext = styler.StyleAt(i + 1); - bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n'); - if (style == SCE_REBOL_DEFAULT) { - if (ch == '[') { - levelCurrent++; - } else if (ch == ']') { - levelCurrent--; - } - } - if (atEOL) { - int lev = levelPrev; - if (visibleChars == 0) - 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 rebolWordListDesc[] = { - "Keywords", - 0 -}; - -LexerModule lmREBOL(SCLEX_REBOL, ColouriseRebolDoc, "rebol", FoldRebolDoc, rebolWordListDesc); - |