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+// Scintilla source code edit control
+/** @file LexAPDL.cxx
+ ** Lexer for APDL. Based on the lexer for Assembler by The Black Horus.
+ ** By Hadar Raz.
+ **/
+// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "Platform.h"
+
+#include "PropSet.h"
+#include "Accessor.h"
+#include "StyleContext.h"
+#include "KeyWords.h"
+#include "Scintilla.h"
+#include "SciLexer.h"
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+static inline bool IsAWordChar(const int ch) {
+ return (ch < 0x80 && (isalnum(ch) || ch == '_'));
+}
+
+static inline bool IsAnOperator(char ch) {
+ // '.' left out as it is used to make up numbers
+ if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
+ ch == '(' || ch == ')' || ch == '=' || ch == '^' ||
+ ch == '[' || ch == ']' || ch == '<' || ch == '&' ||
+ ch == '>' || ch == ',' || ch == '|' || ch == '~' ||
+ ch == '$' || ch == ':' || ch == '%')
+ return true;
+ return false;
+}
+
+static void ColouriseAPDLDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
+ Accessor &styler) {
+
+ int stringStart = ' ';
+
+ WordList &processors = *keywordlists[0];
+ WordList &commands = *keywordlists[1];
+ WordList &slashcommands = *keywordlists[2];
+ WordList &starcommands = *keywordlists[3];
+ WordList &arguments = *keywordlists[4];
+ WordList &functions = *keywordlists[5];
+
+ // Do not leak onto next line
+ initStyle = SCE_APDL_DEFAULT;
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ for (; sc.More(); sc.Forward()) {
+ // Determine if the current state should terminate.
+ if (sc.state == SCE_APDL_NUMBER) {
+ if (!(IsADigit(sc.ch) || sc.ch == '.' || (sc.ch == 'e' || sc.ch == 'E') ||
+ ((sc.ch == '+' || sc.ch == '-') && (sc.chPrev == 'e' || sc.chPrev == 'E')))) {
+ sc.SetState(SCE_APDL_DEFAULT);
+ }
+ } else if (sc.state == SCE_APDL_COMMENT) {
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_APDL_DEFAULT);
+ }
+ } else if (sc.state == SCE_APDL_COMMENTBLOCK) {
+ if (sc.atLineEnd) {
+ if (sc.ch == '\r') {
+ sc.Forward();
+ }
+ sc.ForwardSetState(SCE_APDL_DEFAULT);
+ }
+ } else if (sc.state == SCE_APDL_STRING) {
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_APDL_DEFAULT);
+ } else if ((sc.ch == '\'' && stringStart == '\'') || (sc.ch == '\"' && stringStart == '\"')) {
+ sc.ForwardSetState(SCE_APDL_DEFAULT);
+ }
+ } else if (sc.state == SCE_APDL_WORD) {
+ if (!IsAWordChar(sc.ch)) {
+ char s[100];
+ sc.GetCurrentLowered(s, sizeof(s));
+ if (processors.InList(s)) {
+ sc.ChangeState(SCE_APDL_PROCESSOR);
+ } else if (slashcommands.InList(s)) {
+ sc.ChangeState(SCE_APDL_SLASHCOMMAND);
+ } else if (starcommands.InList(s)) {
+ sc.ChangeState(SCE_APDL_STARCOMMAND);
+ } else if (commands.InList(s)) {
+ sc.ChangeState(SCE_APDL_COMMAND);
+ } else if (arguments.InList(s)) {
+ sc.ChangeState(SCE_APDL_ARGUMENT);
+ } else if (functions.InList(s)) {
+ sc.ChangeState(SCE_APDL_FUNCTION);
+ }
+ sc.SetState(SCE_APDL_DEFAULT);
+ }
+ } else if (sc.state == SCE_APDL_OPERATOR) {
+ if (!IsAnOperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_APDL_DEFAULT);
+ }
+ }
+
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_APDL_DEFAULT) {
+ if (sc.ch == '!' && sc.chNext == '!') {
+ sc.SetState(SCE_APDL_COMMENTBLOCK);
+ } else if (sc.ch == '!') {
+ sc.SetState(SCE_APDL_COMMENT);
+ } else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
+ sc.SetState(SCE_APDL_NUMBER);
+ } else if (sc.ch == '\'' || sc.ch == '\"') {
+ sc.SetState(SCE_APDL_STRING);
+ stringStart = sc.ch;
+ } else if (IsAWordChar(sc.ch) || ((sc.ch == '*' || sc.ch == '/') && !isgraph(sc.chPrev))) {
+ sc.SetState(SCE_APDL_WORD);
+ } else if (IsAnOperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_APDL_OPERATOR);
+ }
+ }
+ }
+ sc.Complete();
+}
+
+//------------------------------------------------------------------------------
+// 06-27-07 Sergio Lucato
+// - Included code folding for Ansys APDL lexer
+// - Copyied from LexBasic.cxx and modified for APDL
+//------------------------------------------------------------------------------
+
+/* Bits:
+ * 1 - whitespace
+ * 2 - operator
+ * 4 - identifier
+ * 8 - decimal digit
+ * 16 - hex digit
+ * 32 - bin digit
+ */
+static int character_classification[128] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 2, 0, 2, 2, 2, 2, 2, 2, 2, 6, 2, 2, 2, 10, 6,
+ 60, 60, 28, 28, 28, 28, 28, 28, 28, 28, 2, 2, 2, 2, 2, 2,
+ 2, 20, 20, 20, 20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 4,
+ 2, 20, 20, 20, 20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 0
+};
+
+static bool IsSpace(int c) {
+ return c < 128 && (character_classification[c] & 1);
+}
+
+static bool IsIdentifier(int c) {
+ return c < 128 && (character_classification[c] & 4);
+}
+
+static int LowerCase(int c)
+{
+ if (c >= 'A' && c <= 'Z')
+ return 'a' + c - 'A';
+ return c;
+}
+
+static int CheckAPDLFoldPoint(char const *token, int &level) {
+ if (!strcmp(token, "*if") ||
+ !strcmp(token, "*do") ||
+ !strcmp(token, "*dowhile") ) {
+ level |= SC_FOLDLEVELHEADERFLAG;
+ return 1;
+ }
+ if (!strcmp(token, "*endif") ||
+ !strcmp(token, "*enddo") ) {
+ return -1;
+ }
+ return 0;
+}
+
+static void FoldAPDLDoc(unsigned int startPos, int length, int,
+ WordList *[], Accessor &styler) {
+
+ int line = styler.GetLine(startPos);
+ int level = styler.LevelAt(line);
+ int go = 0, done = 0;
+ int endPos = startPos + length;
+ char word[256];
+ int wordlen = 0;
+ int i;
+ bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+ // Scan for tokens at the start of the line (they may include
+ // whitespace, for tokens like "End Function"
+ for (i = startPos; i < endPos; i++) {
+ int c = styler.SafeGetCharAt(i);
+ if (!done && !go) {
+ if (wordlen) { // are we scanning a token already?
+ word[wordlen] = static_cast<char>(LowerCase(c));
+ if (!IsIdentifier(c)) { // done with token
+ word[wordlen] = '\0';
+ go = CheckAPDLFoldPoint(word, level);
+ if (!go) {
+ // Treat any whitespace as single blank, for
+ // things like "End Function".
+ if (IsSpace(c) && IsIdentifier(word[wordlen - 1])) {
+ word[wordlen] = ' ';
+ if (wordlen < 255)
+ wordlen++;
+ }
+ else // done with this line
+ done = 1;
+ }
+ } else if (wordlen < 255) {
+ wordlen++;
+ }
+ } else { // start scanning at first non-whitespace character
+ if (!IsSpace(c)) {
+ if (IsIdentifier(c)) {
+ word[0] = static_cast<char>(LowerCase(c));
+ wordlen = 1;
+ } else // done with this line
+ done = 1;
+ }
+ }
+ }
+ if (c == '\n') { // line end
+ if (!done && wordlen == 0 && foldCompact) // line was only space
+ level |= SC_FOLDLEVELWHITEFLAG;
+ if (level != styler.LevelAt(line))
+ styler.SetLevel(line, level);
+ level += go;
+ line++;
+ // reset state
+ wordlen = 0;
+ level &= ~SC_FOLDLEVELHEADERFLAG;
+ level &= ~SC_FOLDLEVELWHITEFLAG;
+ go = 0;
+ done = 0;
+ }
+ }
+}
+
+static const char * const apdlWordListDesc[] = {
+ "processors",
+ "commands",
+ "slashommands",
+ "starcommands",
+ "arguments",
+ "functions",
+ 0
+};
+
+LexerModule lmAPDL(SCLEX_APDL, ColouriseAPDLDoc, "apdl", FoldAPDLDoc, apdlWordListDesc);