diff options
Diffstat (limited to 'src/LexBullant.cpp')
-rwxr-xr-x | src/LexBullant.cpp | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/LexBullant.cpp b/src/LexBullant.cpp new file mode 100755 index 0000000..902f89c --- /dev/null +++ b/src/LexBullant.cpp @@ -0,0 +1,225 @@ +// SciTE - Scintilla based Text Editor +// LexBullant.cxx - lexer for Bullant + +#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" + + +static int classifyWordBullant(unsigned int start, unsigned int end, WordList &keywords, Accessor &styler) { + char s[100]; + for (unsigned int i = 0; i < end - start + 1 && i < 30; i++) { + s[i] = static_cast<char>(tolower(styler[start + i])); + s[i + 1] = '\0'; + } + int lev= 0; + char chAttr = SCE_C_IDENTIFIER; + if (isdigit(s[0]) || (s[0] == '.')){ + chAttr = SCE_C_NUMBER; + } + else { + if (keywords.InList(s)) { + chAttr = SCE_C_WORD; + if (strcmp(s, "end") == 0) + lev = -1; + else if (strcmp(s, "method") == 0 || + strcmp(s, "case") == 0 || + strcmp(s, "class") == 0 || + strcmp(s, "debug") == 0 || + strcmp(s, "test") == 0 || + strcmp(s, "if") == 0 || + strcmp(s, "lock") == 0 || + strcmp(s, "transaction") == 0 || + strcmp(s, "trap") == 0 || + strcmp(s, "until") == 0 || + strcmp(s, "while") == 0) + lev = 1; + } + } + styler.ColourTo(end, chAttr); + return lev; +} + +static void ColouriseBullantDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[], + Accessor &styler) { + WordList &keywords = *keywordlists[0]; + + styler.StartAt(startPos); + + bool fold = styler.GetPropertyInt("fold") != 0; + int lineCurrent = styler.GetLine(startPos); + int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK; + int levelCurrent = levelPrev; + + int state = initStyle; + if (state == SCE_C_STRINGEOL) // Does not leak onto next line + state = SCE_C_DEFAULT; + char chPrev = ' '; + char chNext = styler[startPos]; + unsigned int lengthDoc = startPos + length; + int visibleChars = 0; + styler.StartSegment(startPos); + int endFoundThisLine = 0; + 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 + endFoundThisLine = 0; + if (state == SCE_C_STRINGEOL) { + styler.ColourTo(i, state); + state = SCE_C_DEFAULT; + } + if (fold) { + int lev = levelPrev; + if (visibleChars == 0) + lev |= SC_FOLDLEVELWHITEFLAG; + if ((levelCurrent > levelPrev) && (visibleChars > 0)) + lev |= SC_FOLDLEVELHEADERFLAG; + styler.SetLevel(lineCurrent, lev); + lineCurrent++; + levelPrev = levelCurrent; + } + visibleChars = 0; + +/* int indentBlock = GetLineIndentation(lineCurrent); + if (blockChange==1){ + lineCurrent++; + int pos=SetLineIndentation(lineCurrent, indentBlock + indentSize); + } else if (blockChange==-1) { + indentBlock -= indentSize; + if (indentBlock < 0) + indentBlock = 0; + SetLineIndentation(lineCurrent, indentBlock); + lineCurrent++; + } + blockChange=0; +*/ } + if (!isspace(ch)) + visibleChars++; + + if (styler.IsLeadByte(ch)) { + chNext = styler.SafeGetCharAt(i + 2); + chPrev = ' '; + i += 1; + continue; + } + + if (state == SCE_C_DEFAULT) { + if (iswordstart(ch)) { + styler.ColourTo(i-1, state); + state = SCE_C_IDENTIFIER; + } else if (ch == '@' && chNext == 'o') { + if ((styler.SafeGetCharAt(i+2) =='f') && (styler.SafeGetCharAt(i+3) == 'f')) { + styler.ColourTo(i-1, state); + state = SCE_C_COMMENT; + } + } else if (ch == '#') { + styler.ColourTo(i-1, state); + state = SCE_C_COMMENTLINE; + } else if (ch == '\"') { + styler.ColourTo(i-1, state); + state = SCE_C_STRING; + } else if (ch == '\'') { + styler.ColourTo(i-1, state); + state = SCE_C_CHARACTER; + } else if (isoperator(ch)) { + styler.ColourTo(i-1, state); + styler.ColourTo(i, SCE_C_OPERATOR); + } + } else if (state == SCE_C_IDENTIFIER) { + if (!iswordchar(ch)) { + int levelChange = classifyWordBullant(styler.GetStartSegment(), i - 1, keywords, styler); + state = SCE_C_DEFAULT; + chNext = styler.SafeGetCharAt(i + 1); + if (ch == '#') { + state = SCE_C_COMMENTLINE; + } else if (ch == '\"') { + state = SCE_C_STRING; + } else if (ch == '\'') { + state = SCE_C_CHARACTER; + } else if (isoperator(ch)) { + styler.ColourTo(i, SCE_C_OPERATOR); + } + if (endFoundThisLine == 0) + levelCurrent+=levelChange; + if (levelChange == -1) + endFoundThisLine=1; + } + } else if (state == SCE_C_COMMENT) { + if (ch == '@' && chNext == 'o') { + if (styler.SafeGetCharAt(i+2) == 'n') { + styler.ColourTo(i+2, state); + state = SCE_C_DEFAULT; + i+=2; + } + } + } else if (state == SCE_C_COMMENTLINE) { + if (ch == '\r' || ch == '\n') { + endFoundThisLine = 0; + styler.ColourTo(i-1, state); + state = SCE_C_DEFAULT; + } + } else if (state == SCE_C_STRING) { + if (ch == '\\') { + if (chNext == '\"' || chNext == '\'' || chNext == '\\') { + i++; + ch = chNext; + chNext = styler.SafeGetCharAt(i + 1); + } + } else if (ch == '\"') { + styler.ColourTo(i, state); + state = SCE_C_DEFAULT; + } else if (chNext == '\r' || chNext == '\n') { + endFoundThisLine = 0; + styler.ColourTo(i-1, SCE_C_STRINGEOL); + state = SCE_C_STRINGEOL; + } + } else if (state == SCE_C_CHARACTER) { + if ((ch == '\r' || ch == '\n') && (chPrev != '\\')) { + endFoundThisLine = 0; + styler.ColourTo(i-1, SCE_C_STRINGEOL); + state = SCE_C_STRINGEOL; + } else if (ch == '\\') { + if (chNext == '\"' || chNext == '\'' || chNext == '\\') { + i++; + ch = chNext; + chNext = styler.SafeGetCharAt(i + 1); + } + } else if (ch == '\'') { + styler.ColourTo(i, state); + state = SCE_C_DEFAULT; + } + } + chPrev = ch; + } + styler.ColourTo(lengthDoc - 1, state); + + // Fill in the real level of the next line, keeping the current flags as they will be filled in later + if (fold) { + int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK; + //styler.SetLevel(lineCurrent, levelCurrent | flagsNext); + styler.SetLevel(lineCurrent, levelPrev | flagsNext); + + } +} + +static const char * const bullantWordListDesc[] = { + "Keywords", + 0 +}; + +LexerModule lmBullant(SCLEX_BULLANT, ColouriseBullantDoc, "bullant", 0, bullantWordListDesc); |