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Diffstat (limited to 'src/LexHaskell.cxx')
| -rw-r--r-- | src/LexHaskell.cxx | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/src/LexHaskell.cxx b/src/LexHaskell.cxx deleted file mode 100644 index b528f3f0e..000000000 --- a/src/LexHaskell.cxx +++ /dev/null @@ -1,275 +0,0 @@ -/****************************************************************** - * LexHaskell.cxx - * - * A haskell lexer for the scintilla code control. - * Some stuff "lended" from LexPython.cxx and LexCPP.cxx. - * External lexer stuff inspired from the caml external lexer. - * - * Written by Tobias Engvall - tumm at dtek dot chalmers dot se - * - * - * TODO: - * * Implement a folder :) - * * Nice Character-lexing (stuff inside '\''), LexPython has - * this. - * - * - *****************************************************************/ - -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include <stdio.h> -#include <stdarg.h> - -#include "Platform.h" - -#include "PropSet.h" -#include "PropSetSimple.h" -#include "Accessor.h" -#include "StyleContext.h" -#include "KeyWords.h" -#include "Scintilla.h" -#include "SciLexer.h" - -#ifdef SCI_NAMESPACE -using namespace Scintilla; -#endif - -#ifdef BUILD_AS_EXTERNAL_LEXER - -#include "ExternalLexer.h" -#include "WindowAccessor.h" - -#define BUILD_EXTERNAL_LEXER 0 - -#endif - -// Max level of nested comments -#define SCE_HA_COMMENTMAX SCE_HA_COMMENTBLOCK3 - - -enum kwType { kwOther, kwClass, kwData, kwInstance, kwImport, kwModule, kwType}; - -static inline bool IsNewline(const int ch) { - return (ch == '\n' || ch == '\r'); -} - -static inline bool IsWhitespace(const int ch) { - return ( ch == ' ' - || ch == '\t' - || IsNewline(ch) ); -} - -static inline bool IsAWordStart(const int ch) { - return (ch < 0x80) && (isalnum(ch) || ch == '_'); -} - -static inline bool IsAWordChar(const int ch) { - return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_' || ch == '\''); -} - -static void ColorizeHaskellDoc(unsigned int startPos, int length, int initStyle, - WordList *keywordlists[], Accessor &styler) { - - WordList &keywords = *keywordlists[0]; - - int kwLast = kwOther; - - StyleContext sc(startPos, length, initStyle, styler); - - for (; sc.More(); sc.Forward()) { - - // Check for state end - // Operator - if (sc.state == SCE_HA_OPERATOR) { - kwLast = kwOther; - sc.SetState(SCE_HA_DEFAULT); - } - // String - else if (sc.state == SCE_HA_STRING) { - if (sc.ch == '\"') { - sc.ForwardSetState(SCE_HA_DEFAULT); - } else if (sc.ch == '\\') { - sc.Forward(); - } - } - // Char - else if (sc.state == SCE_HA_CHARACTER) { - if (sc.ch == '\'') { - sc.ForwardSetState(SCE_HA_DEFAULT); - } else if (sc.ch == '\\') { - sc.Forward(); - } - } - // Number - else if (sc.state == SCE_HA_NUMBER) { - if (!IsADigit(sc.ch)) { - sc.SetState(SCE_HA_DEFAULT); - } - } - // Types, constructors, etc. - else if (sc.state == SCE_HA_CAPITAL) { - if (!IsAWordChar(sc.ch) || sc.ch == '.') { - sc.SetState(SCE_HA_DEFAULT); - } - } - // Identifier - else if (sc.state == SCE_HA_IDENTIFIER) { - if (!IsAWordChar(sc.ch)) { - char s[100]; - sc.GetCurrent(s, sizeof(s)); - int style = SCE_HA_IDENTIFIER; - if ((kwLast == kwImport) || (strcmp(s,"qualified") == 0) || (strcmp(s,"as") == 0)) { - style = SCE_HA_IMPORT; - } else if (keywords.InList(s)) { - style = SCE_HA_KEYWORD; - } else if (kwLast == kwData) { - style = SCE_HA_DATA; - } else if (kwLast == kwClass) { - style = SCE_HA_CLASS; - } else if (kwLast == kwModule) { - style = SCE_HA_MODULE; - } else if (isupper(s[0])) { - style = SCE_HA_CAPITAL; - } - sc.ChangeState(style); - sc.SetState(SCE_HA_DEFAULT); - if (style == SCE_HA_KEYWORD) { - if (0 == strcmp(s, "class")) - kwLast = kwClass; - else if (0 == strcmp(s, "data")) - kwLast = kwData; - else if (0 == strcmp(s, "instance")) - kwLast = kwInstance; - else if (0 == strcmp(s, "import")) - kwLast = kwImport; - else if (0 == strcmp(s, "module")) - kwLast = kwModule; - else - kwLast = kwOther; - } else if (style == SCE_HA_CLASS || style == SCE_HA_IMPORT || - style == SCE_HA_MODULE || style == SCE_HA_CAPITAL || - style == SCE_HA_DATA || style == SCE_HA_INSTANCE) { - kwLast = kwOther; - } - } - } - // Comments - // Oneliner - else if (sc.state == SCE_HA_COMMENTLINE) { - if (IsNewline(sc.ch)) - sc.SetState(SCE_HA_DEFAULT); - } - // Nested - else if (sc.state >= SCE_HA_COMMENTBLOCK) { - if (sc.Match("{-")) { - if (sc.state < SCE_HA_COMMENTMAX) - sc.SetState(sc.state + 1); - } - else if (sc.Match("-}")) { - sc.Forward(); - if (sc.state == SCE_HA_COMMENTBLOCK) - sc.ForwardSetState(SCE_HA_DEFAULT); - else - sc.ForwardSetState(sc.state - 1); - } - } - // New state? - if (sc.state == SCE_HA_DEFAULT) { - // Digit - if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) { - sc.SetState(SCE_HA_NUMBER); - if (sc.ch == '0' && (sc.chNext == 'X' || sc.chNext == 'x')) { // Match anything starting with "0x" or "0X", too - sc.Forward(1); - } - } - // Comment line - else if (sc.Match("--")) { - sc.SetState(SCE_HA_COMMENTLINE); - // Comment block - } - else if (sc.Match("{-")) { - sc.SetState(SCE_HA_COMMENTBLOCK); - } - // String - else if (sc.Match('\"')) { - sc.SetState(SCE_HA_STRING); - } - // Character - else if (sc.Match('\'')) { - sc.SetState(SCE_HA_CHARACTER); - } - // Stringstart - else if (sc.Match('\"')) { - sc.SetState(SCE_HA_STRING); - } - // Operator - else if (isascii(sc.ch) && isoperator(static_cast<char>(sc.ch))) { - sc.SetState(SCE_HA_OPERATOR); - } - // Keyword - else if (IsAWordStart(sc.ch)) { - sc.SetState(SCE_HA_IDENTIFIER); - } - - } - } - sc.Complete(); -} - -// External stuff - used for dynamic-loading, not implemented in wxStyledTextCtrl yet. -// Inspired by the caml external lexer - Credits to Robert Roessler - http://www.rftp.com -#ifdef BUILD_EXTERNAL_LEXER -static const char* LexerName = "haskell"; - -void EXT_LEXER_DECL Lex(unsigned int lexer, unsigned int startPos, int length, int initStyle, - char *words[], WindowID window, char *props) -{ - PropSetSimple ps; - ps.SetMultiple(props); - WindowAccessor wa(window, ps); - - int nWL = 0; - for (; words[nWL]; nWL++) ; - WordList** wl = new WordList* [nWL + 1]; - int i = 0; - for (; i<nWL; i++) - { - wl[i] = new WordList(); - wl[i]->Set(words[i]); - } - wl[i] = 0; - - ColorizeHaskellDoc(startPos, length, initStyle, wl, wa); - wa.Flush(); - for (i=nWL-1;i>=0;i--) - delete wl[i]; - delete [] wl; -} - -void EXT_LEXER_DECL Fold (unsigned int lexer, unsigned int startPos, int length, int initStyle, - char *words[], WindowID window, char *props) -{ - -} - -int EXT_LEXER_DECL GetLexerCount() -{ - return 1; -} - -void EXT_LEXER_DECL GetLexerName(unsigned int Index, char *name, int buflength) -{ - if (buflength > 0) { - buflength--; - int n = strlen(LexerName); - if (n > buflength) - n = buflength; - memcpy(name, LexerName, n), name[n] = '\0'; - } -} -#endif - -LexerModule lmHaskell(SCLEX_HASKELL, ColorizeHaskellDoc, "haskell"); - |