// 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 <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"
#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(Sci_PositionU startPos, Sci_Position 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(Sci_PositionU startPos, Sci_Position length, int,
WordList *[], Accessor &styler) {
Sci_Position line = styler.GetLine(startPos);
int level = styler.LevelAt(line);
int go = 0, done = 0;
Sci_Position endPos = startPos + length;
char word[256];
int wordlen = 0;
Sci_Position 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);
