diff options
Diffstat (limited to 'lexers/LexStata.cxx')
| -rw-r--r-- | lexers/LexStata.cxx | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/lexers/LexStata.cxx b/lexers/LexStata.cxx deleted file mode 100644 index 78410c627..000000000 --- a/lexers/LexStata.cxx +++ /dev/null @@ -1,203 +0,0 @@ -// Scintilla source code edit control -/** @file LexStata.cxx - ** Lexer for Stata - **/ -// Author: Luke Rasmussen (luke.rasmussen@gmail.com) -// -// The License.txt file describes the conditions under which this software may -// be distributed. -// -// Developed as part of the StatTag project at Northwestern University Feinberg -// School of Medicine with funding from Northwestern University Clinical and -// Translational Sciences Institute through CTSA grant UL1TR001422. This work -// has not been reviewed or endorsed by NCATS or the NIH. - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> -#include <stdarg.h> -#include <assert.h> -#include <ctype.h> - -#include "ILexer.h" -#include "Scintilla.h" -#include "SciLexer.h" - -#include "WordList.h" -#include "LexAccessor.h" -#include "Accessor.h" -#include "StyleContext.h" -#include "CharacterSet.h" -#include "LexerModule.h" - -using namespace Scintilla; - -static void ColouriseStataDoc(Sci_PositionU startPos, Sci_Position length, int initStyle, WordList *keywordlists[], - Accessor &styler) { - - WordList &keywords = *keywordlists[0]; - WordList &types = *keywordlists[1]; - - CharacterSet setCouldBePostOp(CharacterSet::setNone, "+-"); - CharacterSet setWordStart(CharacterSet::setAlpha, "_", 0x80, true); - CharacterSet setWord(CharacterSet::setAlphaNum, "._", 0x80, true); - - StyleContext sc(startPos, length, initStyle, styler); - bool lineHasNonCommentChar = false; - for (; sc.More(); sc.Forward()) { - if (sc.atLineStart) { - lineHasNonCommentChar = false; - } - - // Determine if the current state should terminate. - switch (sc.state) { - case SCE_STATA_OPERATOR: - sc.SetState(SCE_STATA_DEFAULT); - break; - case SCE_STATA_NUMBER: - // We accept almost anything because of hex. and number suffixes - if (!setWord.Contains(sc.ch)) { - sc.SetState(SCE_STATA_DEFAULT); - } - break; - case SCE_STATA_IDENTIFIER: - if (!setWord.Contains(sc.ch) || (sc.ch == '.')) { - char s[1000]; - sc.GetCurrent(s, sizeof(s)); - if (keywords.InList(s)) { - sc.ChangeState(SCE_STATA_WORD); - } - else if (types.InList(s)) { - sc.ChangeState(SCE_STATA_TYPE); - } - sc.SetState(SCE_STATA_DEFAULT); - } - break; - case SCE_STATA_COMMENTBLOCK: - if (sc.Match('*', '/')) { - sc.Forward(); - sc.ForwardSetState(SCE_STATA_DEFAULT); - } - break; - case SCE_STATA_COMMENT: - case SCE_STATA_COMMENTLINE: - if (sc.atLineStart) { - sc.SetState(SCE_STATA_DEFAULT); - } - break; - case SCE_STATA_STRING: - if (sc.ch == '\\') { - // Per Stata documentation, the following characters are the only ones that can - // be escaped (not our typical set of quotes, etc.): - // https://www.stata.com/support/faqs/programming/backslashes-and-macros/ - if (sc.chNext == '$' || sc.chNext == '`' || sc.chNext == '\\') { - sc.Forward(); - } - } - else if (sc.ch == '\"') { - sc.ForwardSetState(SCE_STATA_DEFAULT); - } - break; - } - - // Determine if a new state should be entered. - if (sc.state == SCE_STATA_DEFAULT) { - if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) { - lineHasNonCommentChar = true; - sc.SetState(SCE_STATA_NUMBER); - } - else if (setWordStart.Contains(sc.ch)) { - lineHasNonCommentChar = true; - sc.SetState(SCE_STATA_IDENTIFIER); - } - else if (sc.Match('*') && !lineHasNonCommentChar) { - sc.SetState(SCE_STATA_COMMENT); - } - else if (sc.Match('/', '*')) { - sc.SetState(SCE_STATA_COMMENTBLOCK); - sc.Forward(); // Eat the * so it isn't used for the end of the comment - } - else if (sc.Match('/', '/')) { - sc.SetState(SCE_STATA_COMMENTLINE); - } - else if (sc.ch == '\"') { - lineHasNonCommentChar = true; - sc.SetState(SCE_STATA_STRING); - } - else if (isoperator(sc.ch)) { - lineHasNonCommentChar = true; - sc.SetState(SCE_STATA_OPERATOR); - } - } - } - - sc.Complete(); -} - -// Store both the current line's fold level and the next lines in the -// level store to make it easy to pick up with each increment -// and to make it possible to fiddle the current level for "} else {". -static void FoldStataDoc(Sci_PositionU startPos, Sci_Position length, int, WordList *[], - Accessor &styler) { - bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0; - bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0; - Sci_PositionU endPos = startPos + length; - int visibleChars = 0; - Sci_Position lineCurrent = styler.GetLine(startPos); - int levelCurrent = SC_FOLDLEVELBASE; - if (lineCurrent > 0) - levelCurrent = styler.LevelAt(lineCurrent - 1) >> 16; - int levelMinCurrent = levelCurrent; - int levelNext = levelCurrent; - char chNext = styler[startPos]; - int styleNext = styler.StyleAt(startPos); - for (Sci_PositionU i = startPos; i < endPos; 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_R_OPERATOR) { - if (ch == '{') { - // Measure the minimum before a '{' to allow - // folding on "} else {" - if (levelMinCurrent > levelNext) { - levelMinCurrent = levelNext; - } - levelNext++; - } - else if (ch == '}') { - levelNext--; - } - } - if (atEOL) { - int levelUse = levelCurrent; - if (foldAtElse) { - levelUse = levelMinCurrent; - } - int lev = levelUse | levelNext << 16; - if (visibleChars == 0 && foldCompact) - lev |= SC_FOLDLEVELWHITEFLAG; - if (levelUse < levelNext) - lev |= SC_FOLDLEVELHEADERFLAG; - if (lev != styler.LevelAt(lineCurrent)) { - styler.SetLevel(lineCurrent, lev); - } - lineCurrent++; - levelCurrent = levelNext; - levelMinCurrent = levelCurrent; - visibleChars = 0; - } - if (!isspacechar(ch)) - visibleChars++; - } -} - - -static const char * const StataWordLists[] = { - "Language Keywords", - "Types", - 0, -}; - -LexerModule lmStata(SCLEX_STATA, ColouriseStataDoc, "stata", FoldStataDoc, StataWordLists); |