chore: bump scintilla and lexilla version
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215
3rdparty/lexilla545/lexilla/lexers/LexCsound.cxx
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215
3rdparty/lexilla545/lexilla/lexers/LexCsound.cxx
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// Scintilla source code edit control
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/** @file LexCsound.cxx
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** Lexer for Csound (Orchestra & Score)
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** Written by Georg Ritter - <ritterfuture A T gmail D O T com>
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**/
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// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <ctype.h>
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#include <string>
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#include <string_view>
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#include "ILexer.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#include "WordList.h"
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#include "LexAccessor.h"
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#include "Accessor.h"
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#include "StyleContext.h"
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#include "CharacterSet.h"
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#include "LexerModule.h"
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using namespace Lexilla;
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static inline bool IsAWordChar(const int ch) {
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return (ch < 0x80) && (isalnum(ch) || ch == '.' ||
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ch == '_' || ch == '?');
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}
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static inline bool IsAWordStart(const int ch) {
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return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '.' ||
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ch == '%' || ch == '@' || ch == '$' || ch == '?');
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}
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static inline bool IsCsoundOperator(char ch) {
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if (IsASCII(ch) && isalnum(ch))
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return false;
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// '.' left out as it is used to make up numbers
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if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
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ch == '(' || ch == ')' || ch == '=' || ch == '^' ||
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ch == '[' || ch == ']' || ch == '<' || ch == '&' ||
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ch == '>' || ch == ',' || ch == '|' || ch == '~' ||
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ch == '%' || ch == ':')
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return true;
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return false;
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}
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static void ColouriseCsoundDoc(Sci_PositionU startPos, Sci_Position length, int initStyle, WordList *keywordlists[],
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Accessor &styler) {
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WordList &opcode = *keywordlists[0];
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WordList &headerStmt = *keywordlists[1];
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WordList &otherKeyword = *keywordlists[2];
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// Do not leak onto next line
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if (initStyle == SCE_CSOUND_STRINGEOL)
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initStyle = SCE_CSOUND_DEFAULT;
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StyleContext sc(startPos, length, initStyle, styler);
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for (; sc.More(); sc.Forward())
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{
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// Handle line continuation generically.
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if (sc.ch == '\\') {
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if (sc.chNext == '\n' || sc.chNext == '\r') {
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sc.Forward();
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if (sc.ch == '\r' && sc.chNext == '\n') {
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sc.Forward();
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}
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continue;
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}
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}
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// Determine if the current state should terminate.
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if (sc.state == SCE_CSOUND_OPERATOR) {
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if (!IsCsoundOperator(static_cast<char>(sc.ch))) {
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sc.SetState(SCE_CSOUND_DEFAULT);
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}
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}else if (sc.state == SCE_CSOUND_NUMBER) {
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if (!IsAWordChar(sc.ch)) {
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sc.SetState(SCE_CSOUND_DEFAULT);
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}
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} else if (sc.state == SCE_CSOUND_IDENTIFIER) {
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if (!IsAWordChar(sc.ch) ) {
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char s[100];
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sc.GetCurrent(s, sizeof(s));
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if (opcode.InList(s)) {
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sc.ChangeState(SCE_CSOUND_OPCODE);
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} else if (headerStmt.InList(s)) {
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sc.ChangeState(SCE_CSOUND_HEADERSTMT);
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} else if (otherKeyword.InList(s)) {
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sc.ChangeState(SCE_CSOUND_USERKEYWORD);
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} else if (s[0] == 'p') {
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sc.ChangeState(SCE_CSOUND_PARAM);
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} else if (s[0] == 'a') {
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sc.ChangeState(SCE_CSOUND_ARATE_VAR);
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} else if (s[0] == 'k') {
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sc.ChangeState(SCE_CSOUND_KRATE_VAR);
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} else if (s[0] == 'i') { // covers both i-rate variables and i-statements
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sc.ChangeState(SCE_CSOUND_IRATE_VAR);
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} else if (s[0] == 'g') {
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sc.ChangeState(SCE_CSOUND_GLOBAL_VAR);
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}
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sc.SetState(SCE_CSOUND_DEFAULT);
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}
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}
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else if (sc.state == SCE_CSOUND_COMMENT ) {
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if (sc.atLineEnd) {
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sc.SetState(SCE_CSOUND_DEFAULT);
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}
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}
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else if ((sc.state == SCE_CSOUND_ARATE_VAR) ||
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(sc.state == SCE_CSOUND_KRATE_VAR) ||
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(sc.state == SCE_CSOUND_IRATE_VAR)) {
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if (!IsAWordChar(sc.ch)) {
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sc.SetState(SCE_CSOUND_DEFAULT);
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}
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}
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// Determine if a new state should be entered.
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if (sc.state == SCE_CSOUND_DEFAULT) {
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if (sc.ch == ';'){
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sc.SetState(SCE_CSOUND_COMMENT);
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} else if (isdigit(sc.ch) || (sc.ch == '.' && isdigit(sc.chNext))) {
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sc.SetState(SCE_CSOUND_NUMBER);
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} else if (IsAWordStart(sc.ch)) {
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sc.SetState(SCE_CSOUND_IDENTIFIER);
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} else if (IsCsoundOperator(static_cast<char>(sc.ch))) {
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sc.SetState(SCE_CSOUND_OPERATOR);
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} else if (sc.ch == 'p') {
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sc.SetState(SCE_CSOUND_PARAM);
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} else if (sc.ch == 'a') {
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sc.SetState(SCE_CSOUND_ARATE_VAR);
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} else if (sc.ch == 'k') {
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sc.SetState(SCE_CSOUND_KRATE_VAR);
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} else if (sc.ch == 'i') { // covers both i-rate variables and i-statements
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sc.SetState(SCE_CSOUND_IRATE_VAR);
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} else if (sc.ch == 'g') {
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sc.SetState(SCE_CSOUND_GLOBAL_VAR);
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}
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}
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}
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sc.Complete();
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}
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static void FoldCsoundInstruments(Sci_PositionU startPos, Sci_Position length, int /* initStyle */, WordList *[],
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Accessor &styler) {
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Sci_PositionU lengthDoc = startPos + length;
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int visibleChars = 0;
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Sci_Position lineCurrent = styler.GetLine(startPos);
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int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
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int levelCurrent = levelPrev;
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char chNext = styler[startPos];
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int stylePrev = 0;
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int styleNext = styler.StyleAt(startPos);
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for (Sci_PositionU i = startPos; i < lengthDoc; i++) {
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char ch = chNext;
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chNext = styler.SafeGetCharAt(i + 1);
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int style = styleNext;
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styleNext = styler.StyleAt(i + 1);
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bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
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if ((stylePrev != SCE_CSOUND_OPCODE) && (style == SCE_CSOUND_OPCODE)) {
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char s[20];
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unsigned int j = 0;
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while ((j < (sizeof(s) - 1)) && (iswordchar(styler[i + j]))) {
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s[j] = styler[i + j];
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j++;
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}
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s[j] = '\0';
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if (strcmp(s, "instr") == 0)
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levelCurrent++;
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if (strcmp(s, "endin") == 0)
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levelCurrent--;
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}
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if (atEOL) {
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int lev = levelPrev;
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if (visibleChars == 0)
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lev |= SC_FOLDLEVELWHITEFLAG;
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if ((levelCurrent > levelPrev) && (visibleChars > 0))
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lev |= SC_FOLDLEVELHEADERFLAG;
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if (lev != styler.LevelAt(lineCurrent)) {
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styler.SetLevel(lineCurrent, lev);
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}
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lineCurrent++;
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levelPrev = levelCurrent;
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visibleChars = 0;
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}
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if (!isspacechar(ch))
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visibleChars++;
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stylePrev = style;
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}
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// Fill in the real level of the next line, keeping the current flags as they will be filled in later
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int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
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styler.SetLevel(lineCurrent, levelPrev | flagsNext);
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}
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static const char * const csoundWordListDesc[] = {
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"Opcodes",
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"Header Statements",
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"User keywords",
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0
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};
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extern const LexerModule lmCsound(SCLEX_CSOUND, ColouriseCsoundDoc, "csound", FoldCsoundInstruments, csoundWordListDesc);
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