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256 lines
7.7 KiB
C++
256 lines
7.7 KiB
C++
// Scintilla source code edit control
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/** @file LexAPDL.cxx
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** Lexer for APDL. Based on the lexer for Assembler by The Black Horus.
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** By Hadar Raz.
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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 <ctype.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "Platform.h"
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#include "PropSet.h"
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#include "Accessor.h"
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#include "StyleContext.h"
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#include "KeyWords.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#ifdef SCI_NAMESPACE
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using namespace Scintilla;
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#endif
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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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}
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static inline bool IsAnOperator(char ch) {
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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 == ':' || ch == '%')
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return true;
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return false;
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}
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static void ColouriseAPDLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
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Accessor &styler) {
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int stringStart = ' ';
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WordList &processors = *keywordlists[0];
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WordList &commands = *keywordlists[1];
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WordList &slashcommands = *keywordlists[2];
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WordList &starcommands = *keywordlists[3];
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WordList &arguments = *keywordlists[4];
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WordList &functions = *keywordlists[5];
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// Do not leak onto next line
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initStyle = SCE_APDL_DEFAULT;
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StyleContext sc(startPos, length, initStyle, styler);
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for (; sc.More(); sc.Forward()) {
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// Determine if the current state should terminate.
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if (sc.state == SCE_APDL_NUMBER) {
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if (!(IsADigit(sc.ch) || sc.ch == '.' || (sc.ch == 'e' || sc.ch == 'E') ||
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((sc.ch == '+' || sc.ch == '-') && (sc.chPrev == 'e' || sc.chPrev == 'E')))) {
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sc.SetState(SCE_APDL_DEFAULT);
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}
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} else if (sc.state == SCE_APDL_COMMENT) {
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if (sc.atLineEnd) {
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sc.SetState(SCE_APDL_DEFAULT);
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}
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} else if (sc.state == SCE_APDL_COMMENTBLOCK) {
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if (sc.atLineEnd) {
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if (sc.ch == '\r') {
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sc.Forward();
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}
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sc.ForwardSetState(SCE_APDL_DEFAULT);
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}
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} else if (sc.state == SCE_APDL_STRING) {
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if (sc.atLineEnd) {
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sc.SetState(SCE_APDL_DEFAULT);
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} else if ((sc.ch == '\'' && stringStart == '\'') || (sc.ch == '\"' && stringStart == '\"')) {
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sc.ForwardSetState(SCE_APDL_DEFAULT);
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}
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} else if (sc.state == SCE_APDL_WORD) {
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if (!IsAWordChar(sc.ch)) {
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char s[100];
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sc.GetCurrentLowered(s, sizeof(s));
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if (processors.InList(s)) {
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sc.ChangeState(SCE_APDL_PROCESSOR);
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} else if (slashcommands.InList(s)) {
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sc.ChangeState(SCE_APDL_SLASHCOMMAND);
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} else if (starcommands.InList(s)) {
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sc.ChangeState(SCE_APDL_STARCOMMAND);
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} else if (commands.InList(s)) {
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sc.ChangeState(SCE_APDL_COMMAND);
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} else if (arguments.InList(s)) {
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sc.ChangeState(SCE_APDL_ARGUMENT);
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} else if (functions.InList(s)) {
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sc.ChangeState(SCE_APDL_FUNCTION);
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}
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sc.SetState(SCE_APDL_DEFAULT);
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}
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} else if (sc.state == SCE_APDL_OPERATOR) {
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if (!IsAnOperator(static_cast<char>(sc.ch))) {
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sc.SetState(SCE_APDL_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_APDL_DEFAULT) {
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if (sc.ch == '!' && sc.chNext == '!') {
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sc.SetState(SCE_APDL_COMMENTBLOCK);
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} else if (sc.ch == '!') {
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sc.SetState(SCE_APDL_COMMENT);
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} else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
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sc.SetState(SCE_APDL_NUMBER);
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} else if (sc.ch == '\'' || sc.ch == '\"') {
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sc.SetState(SCE_APDL_STRING);
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stringStart = sc.ch;
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} else if (IsAWordChar(sc.ch) || ((sc.ch == '*' || sc.ch == '/') && !isgraph(sc.chPrev))) {
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sc.SetState(SCE_APDL_WORD);
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} else if (IsAnOperator(static_cast<char>(sc.ch))) {
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sc.SetState(SCE_APDL_OPERATOR);
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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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//------------------------------------------------------------------------------
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// 06-27-07 Sergio Lucato
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// - Included code folding for Ansys APDL lexer
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// - Copyied from LexBasic.cxx and modified for APDL
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//------------------------------------------------------------------------------
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/* Bits:
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* 1 - whitespace
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* 2 - operator
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* 4 - identifier
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* 8 - decimal digit
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* 16 - hex digit
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* 32 - bin digit
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*/
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static int character_classification[128] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 2, 0, 2, 2, 2, 2, 2, 2, 2, 6, 2, 2, 2, 10, 6,
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60, 60, 28, 28, 28, 28, 28, 28, 28, 28, 2, 2, 2, 2, 2, 2,
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2, 20, 20, 20, 20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 4,
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2, 20, 20, 20, 20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 0
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};
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static bool IsSpace(int c) {
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return c < 128 && (character_classification[c] & 1);
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}
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static bool IsIdentifier(int c) {
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return c < 128 && (character_classification[c] & 4);
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}
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static int LowerCase(int c)
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{
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if (c >= 'A' && c <= 'Z')
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return 'a' + c - 'A';
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return c;
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}
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static int CheckAPDLFoldPoint(char const *token, int &level) {
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if (!strcmp(token, "*if") ||
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!strcmp(token, "*do") ||
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!strcmp(token, "*dowhile") ) {
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level |= SC_FOLDLEVELHEADERFLAG;
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return 1;
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}
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if (!strcmp(token, "*endif") ||
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!strcmp(token, "*enddo") ) {
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return -1;
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}
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return 0;
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}
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static void FoldAPDLDoc(unsigned int startPos, int length, int,
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WordList *[], Accessor &styler) {
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int line = styler.GetLine(startPos);
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int level = styler.LevelAt(line);
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int go = 0, done = 0;
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int endPos = startPos + length;
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char word[256];
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int wordlen = 0;
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int i;
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bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
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// Scan for tokens at the start of the line (they may include
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// whitespace, for tokens like "End Function"
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for (i = startPos; i < endPos; i++) {
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int c = styler.SafeGetCharAt(i);
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if (!done && !go) {
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if (wordlen) { // are we scanning a token already?
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word[wordlen] = static_cast<char>(LowerCase(c));
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if (!IsIdentifier(c)) { // done with token
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word[wordlen] = '\0';
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go = CheckAPDLFoldPoint(word, level);
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if (!go) {
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// Treat any whitespace as single blank, for
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// things like "End Function".
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if (IsSpace(c) && IsIdentifier(word[wordlen - 1])) {
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word[wordlen] = ' ';
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if (wordlen < 255)
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wordlen++;
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}
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else // done with this line
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done = 1;
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}
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} else if (wordlen < 255) {
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wordlen++;
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}
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} else { // start scanning at first non-whitespace character
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if (!IsSpace(c)) {
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if (IsIdentifier(c)) {
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word[0] = static_cast<char>(LowerCase(c));
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wordlen = 1;
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} else // done with this line
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done = 1;
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}
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}
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}
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if (c == '\n') { // line end
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if (!done && wordlen == 0 && foldCompact) // line was only space
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level |= SC_FOLDLEVELWHITEFLAG;
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if (level != styler.LevelAt(line))
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styler.SetLevel(line, level);
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level += go;
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line++;
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// reset state
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wordlen = 0;
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level &= ~SC_FOLDLEVELHEADERFLAG;
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level &= ~SC_FOLDLEVELWHITEFLAG;
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go = 0;
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done = 0;
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}
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}
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}
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static const char * const apdlWordListDesc[] = {
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"processors",
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"commands",
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"slashommands",
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"starcommands",
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"arguments",
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"functions",
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0
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};
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LexerModule lmAPDL(SCLEX_APDL, ColouriseAPDLDoc, "apdl", FoldAPDLDoc, apdlWordListDesc);
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