ext/scintilla/lexers/LexKix.cxx

   1 // Scintilla source code edit control
   2 /** @file LexKix.cxx
   3  ** Lexer for KIX-Scripts.
   4  **/
   5 // Copyright 2004 by Manfred Becker <manfred@becker-trdf.de>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7 // Edited by Lee Wilmott (24-Jun-2014) added support for block comments
   8
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <stdio.h>
  12 #include <stdarg.h>
  13 #include <assert.h>
  14 #include <ctype.h>
  15
  16 #include "ILexer.h"
  17 #include "Scintilla.h"
  18 #include "SciLexer.h"
  19
  20 #include "WordList.h"
  21 #include "LexAccessor.h"
  22 #include "Accessor.h"
  23 #include "StyleContext.h"
  24 #include "CharacterSet.h"
  25 #include "LexerModule.h"
  26
  27 using namespace Scintilla;
  28
  29 // Extended to accept accented characters
  30 static inline bool IsAWordChar(int ch) {
  31         return ch >= 0x80 || isalnum(ch) || ch == '_';
  32 }
  33
  34 static inline bool IsOperator(const int ch) {
  35         return (ch == '+' || ch == '-' || ch == '*' || ch == '/' || ch == '&' || ch == '|' || ch == '<' || ch == '>' || ch == '=');
  36 }
  37
  38 static void ColouriseKixDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
  39                            WordList *keywordlists[], Accessor &styler) {
  40
  41         WordList &keywords = *keywordlists[0];
  42         WordList &keywords2 = *keywordlists[1];
  43         WordList &keywords3 = *keywordlists[2];
  44 //      WordList &keywords4 = *keywordlists[3];
  45
  46         styler.StartAt(startPos);
  47
  48         StyleContext sc(startPos, length, initStyle, styler);
  49
  50         for (; sc.More(); sc.Forward()) {
  51
  52                 if (sc.state == SCE_KIX_COMMENT) {
  53                         if (sc.atLineEnd) {
  54                                 sc.SetState(SCE_KIX_DEFAULT);
  55                         }
  56                 } else if (sc.state == SCE_KIX_COMMENTSTREAM) {
  57                         if (sc.ch == '/' && sc.chPrev == '*') {
  58                                 sc.ForwardSetState(SCE_KIX_DEFAULT);
  59                         }
  60                 } else if (sc.state == SCE_KIX_STRING1) {
  61                         // This is a doubles quotes string
  62                         if (sc.ch == '\"') {
  63                                 sc.ForwardSetState(SCE_KIX_DEFAULT);
  64                         }
  65                 } else if (sc.state == SCE_KIX_STRING2) {
  66                         // This is a single quote string
  67                         if (sc.ch == '\'') {
  68                                 sc.ForwardSetState(SCE_KIX_DEFAULT);
  69                         }
  70                 } else if (sc.state == SCE_KIX_NUMBER) {
  71                         if (!IsADigit(sc.ch)) {
  72                                 sc.SetState(SCE_KIX_DEFAULT);
  73                         }
  74                 } else if (sc.state == SCE_KIX_VAR) {
  75                         if (!IsAWordChar(sc.ch)) {
  76                                 sc.SetState(SCE_KIX_DEFAULT);
  77                         }
  78                 } else if (sc.state == SCE_KIX_MACRO) {
  79                         if (!IsAWordChar(sc.ch) && !IsADigit(sc.ch)) {
  80                                 char s[100];
  81                                 sc.GetCurrentLowered(s, sizeof(s));
  82
  83                                 if (!keywords3.InList(&s[1])) {
  84                                         sc.ChangeState(SCE_KIX_DEFAULT);
  85                                 }
  86                                 sc.SetState(SCE_KIX_DEFAULT);
  87                         }
  88                 } else if (sc.state == SCE_KIX_OPERATOR) {
  89                         if (!IsOperator(sc.ch)) {
  90                                 sc.SetState(SCE_KIX_DEFAULT);
  91                         }
  92                 } else if (sc.state == SCE_KIX_IDENTIFIER) {
  93                         if (!IsAWordChar(sc.ch)) {
  94                                 char s[100];
  95                                 sc.GetCurrentLowered(s, sizeof(s));
  96
  97                                 if (keywords.InList(s)) {
  98                                         sc.ChangeState(SCE_KIX_KEYWORD);
  99                                 } else if (keywords2.InList(s)) {
 100                                         sc.ChangeState(SCE_KIX_FUNCTIONS);
 101                                 }
 102                                 sc.SetState(SCE_KIX_DEFAULT);
 103                         }
 104                 }
 105
 106                 // Determine if a new state should be entered.
 107                 if (sc.state == SCE_KIX_DEFAULT) {
 108                         if (sc.ch == ';') {
 109                                 sc.SetState(SCE_KIX_COMMENT);
 110                         } else if (sc.ch == '/' && sc.chNext == '*') {
 111                                 sc.SetState(SCE_KIX_COMMENTSTREAM);
 112                         } else if (sc.ch == '\"') {
 113                                 sc.SetState(SCE_KIX_STRING1);
 114                         } else if (sc.ch == '\'') {
 115                                 sc.SetState(SCE_KIX_STRING2);
 116                         } else if (sc.ch == '$') {
 117                                 sc.SetState(SCE_KIX_VAR);
 118                         } else if (sc.ch == '@') {
 119                                 sc.SetState(SCE_KIX_MACRO);
 120                         } else if (IsADigit(sc.ch) || ((sc.ch == '.' || sc.ch == '&') && IsADigit(sc.chNext))) {
 121                                 sc.SetState(SCE_KIX_NUMBER);
 122                         } else if (IsOperator(sc.ch)) {
 123                                 sc.SetState(SCE_KIX_OPERATOR);
 124                         } else if (IsAWordChar(sc.ch)) {
 125                                 sc.SetState(SCE_KIX_IDENTIFIER);
 126                         }
 127                 }
 128         }
 129         sc.Complete();
 130 }
 131
 132
 133 LexerModule lmKix(SCLEX_KIX, ColouriseKixDoc, "kix");
 134