295 lines
8.6 KiB
C++
295 lines
8.6 KiB
C++
|
// Scintilla source code edit control
|
||
|
|
/** @file LexPowerShell.cxx
|
||
|
|
** Lexer for PowerShell scripts.
|
||
|
|
**/
|
||
|
|
// Copyright 2008 by Tim Gerundt <tim@gerundt.de>
|
||
|
|
// 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 <string>
|
||
|
|
#include <string_view>
|
||
|
|
|
||
|
|
#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 Lexilla;
|
||
|
|
|
||
|
|
// Extended to accept accented characters
|
||
|
|
static inline bool IsAWordChar(int ch) noexcept {
|
||
|
|
return ch >= 0x80 || isalnum(ch) || ch == '-' || ch == '_';
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool IsNumericLiteral(int chPrev, int ch, int chNext) {
|
||
|
|
// integers
|
||
|
|
if (ch >= '0' && ch <= '9') {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
// hex 0x or a-f
|
||
|
|
if ((ch == 'x' && chPrev == '0') || (ch >= 'a' && ch <= 'f')) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
// decimal point
|
||
|
|
if (ch == '.' && chNext != '.') {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
// optional -/+ sign after exponent
|
||
|
|
if ((ch == '+' || ch == '-') && chPrev == 'e') {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
// suffix
|
||
|
|
switch (ch) {
|
||
|
|
//case 'b': see hex
|
||
|
|
case 'g':
|
||
|
|
case 'k':
|
||
|
|
case 'l':
|
||
|
|
case 'm':
|
||
|
|
case 'n':
|
||
|
|
case 'p':
|
||
|
|
case 's':
|
||
|
|
case 't':
|
||
|
|
case 'u':
|
||
|
|
case 'y':
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ColourisePowerShellDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
|
||
|
|
WordList *keywordlists[], Accessor &styler) {
|
||
|
|
|
||
|
|
const WordList &keywords = *keywordlists[0];
|
||
|
|
const WordList &keywords2 = *keywordlists[1];
|
||
|
|
const WordList &keywords3 = *keywordlists[2];
|
||
|
|
const WordList &keywords4 = *keywordlists[3];
|
||
|
|
const WordList &keywords5 = *keywordlists[4];
|
||
|
|
const WordList &keywords6 = *keywordlists[5];
|
||
|
|
|
||
|
|
styler.StartAt(startPos);
|
||
|
|
|
||
|
|
StyleContext sc(startPos, length, initStyle, styler);
|
||
|
|
|
||
|
|
for (; sc.More(); sc.Forward()) {
|
||
|
|
|
||
|
|
if (sc.state == SCE_POWERSHELL_COMMENT) {
|
||
|
|
if (sc.MatchLineEnd()) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_COMMENTSTREAM) {
|
||
|
|
if (sc.atLineStart) {
|
||
|
|
while (IsASpaceOrTab(sc.ch)) {
|
||
|
|
sc.Forward();
|
||
|
|
}
|
||
|
|
if (sc.ch == '.' && IsAWordChar(sc.chNext)) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_COMMENTDOCKEYWORD);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (sc.ch == '>' && sc.chPrev == '#') {
|
||
|
|
sc.ForwardSetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_COMMENTDOCKEYWORD) {
|
||
|
|
if (!IsAWordChar(sc.ch)) {
|
||
|
|
char s[100];
|
||
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
||
|
|
if (!keywords6.InList(s + 1)) {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_COMMENTSTREAM);
|
||
|
|
}
|
||
|
|
sc.SetState(SCE_POWERSHELL_COMMENTSTREAM);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_STRING) {
|
||
|
|
// This is a doubles quotes string
|
||
|
|
if (sc.ch == '\"') {
|
||
|
|
sc.ForwardSetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
} else if (sc.ch == '`') {
|
||
|
|
sc.Forward(); // skip next escaped character
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_CHARACTER) {
|
||
|
|
// This is a single quote string
|
||
|
|
if (sc.ch == '\'') {
|
||
|
|
sc.ForwardSetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_HERE_STRING) {
|
||
|
|
// This is a doubles quotes here-string
|
||
|
|
if (sc.atLineStart && sc.ch == '\"' && sc.chNext == '@') {
|
||
|
|
sc.Forward(2);
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_HERE_CHARACTER) {
|
||
|
|
// This is a single quote here-string
|
||
|
|
if (sc.atLineStart && sc.ch == '\'' && sc.chNext == '@') {
|
||
|
|
sc.Forward(2);
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_NUMBER) {
|
||
|
|
if (!IsNumericLiteral(MakeLowerCase(sc.chPrev),
|
||
|
|
MakeLowerCase(sc.ch),
|
||
|
|
MakeLowerCase(sc.chNext))) {
|
||
|
|
if (sc.MatchLineEnd() || IsASpaceOrTab(sc.ch) || isoperator(sc.ch)) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
} else {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_IDENTIFIER);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_VARIABLE) {
|
||
|
|
if (!IsAWordChar(sc.ch)) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_OPERATOR) {
|
||
|
|
if (!isoperator(sc.ch)) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
} else if (sc.state == SCE_POWERSHELL_IDENTIFIER) {
|
||
|
|
if (!IsAWordChar(sc.ch)) {
|
||
|
|
char s[100];
|
||
|
|
sc.GetCurrentLowered(s, sizeof(s));
|
||
|
|
|
||
|
|
if (keywords.InList(s)) {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_KEYWORD);
|
||
|
|
} else if (keywords2.InList(s)) {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_CMDLET);
|
||
|
|
} else if (keywords3.InList(s)) {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_ALIAS);
|
||
|
|
} else if (keywords4.InList(s)) {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_FUNCTION);
|
||
|
|
} else if (keywords5.InList(s)) {
|
||
|
|
sc.ChangeState(SCE_POWERSHELL_USER1);
|
||
|
|
}
|
||
|
|
sc.SetState(SCE_POWERSHELL_DEFAULT);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Determine if a new state should be entered.
|
||
|
|
if (sc.state == SCE_POWERSHELL_DEFAULT) {
|
||
|
|
if (sc.ch == '#') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_COMMENT);
|
||
|
|
} else if (sc.ch == '<' && sc.chNext == '#') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_COMMENTSTREAM);
|
||
|
|
} else if (sc.ch == '\"') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_STRING);
|
||
|
|
} else if (sc.ch == '\'') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_CHARACTER);
|
||
|
|
} else if (sc.ch == '@' && sc.chNext == '\"') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_HERE_STRING);
|
||
|
|
} else if (sc.ch == '@' && sc.chNext == '\'') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_HERE_CHARACTER);
|
||
|
|
} else if (sc.ch == '$') {
|
||
|
|
sc.SetState(SCE_POWERSHELL_VARIABLE);
|
||
|
|
} else if (IsADigit(sc.ch) || (sc.chPrev != '.' && sc.ch == '.' && IsADigit(sc.chNext))) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_NUMBER);
|
||
|
|
} else if (isoperator(sc.ch)) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_OPERATOR);
|
||
|
|
} else if (IsAWordChar(sc.ch)) {
|
||
|
|
sc.SetState(SCE_POWERSHELL_IDENTIFIER);
|
||
|
|
} else if (sc.ch == '`') {
|
||
|
|
sc.Forward(); // skip next escaped character
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
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 FoldPowerShellDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
|
||
|
|
WordList *[], Accessor &styler) {
|
||
|
|
const bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
|
||
|
|
const bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
|
||
|
|
const bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
|
||
|
|
const 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);
|
||
|
|
int style = initStyle;
|
||
|
|
for (Sci_PositionU i = startPos; i < endPos; i++) {
|
||
|
|
const char ch = chNext;
|
||
|
|
chNext = styler.SafeGetCharAt(i + 1);
|
||
|
|
const int stylePrev = style;
|
||
|
|
style = styleNext;
|
||
|
|
styleNext = styler.StyleAt(i + 1);
|
||
|
|
const bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
|
||
|
|
if (style == SCE_POWERSHELL_OPERATOR) {
|
||
|
|
if (ch == '{') {
|
||
|
|
// Measure the minimum before a '{' to allow
|
||
|
|
// folding on "} else {"
|
||
|
|
if (levelMinCurrent > levelNext) {
|
||
|
|
levelMinCurrent = levelNext;
|
||
|
|
}
|
||
|
|
levelNext++;
|
||
|
|
} else if (ch == '}') {
|
||
|
|
levelNext--;
|
||
|
|
}
|
||
|
|
} else if (foldComment && style == SCE_POWERSHELL_COMMENTSTREAM) {
|
||
|
|
if (stylePrev != SCE_POWERSHELL_COMMENTSTREAM && stylePrev != SCE_POWERSHELL_COMMENTDOCKEYWORD) {
|
||
|
|
levelNext++;
|
||
|
|
} else if (styleNext != SCE_POWERSHELL_COMMENTSTREAM && styleNext != SCE_POWERSHELL_COMMENTDOCKEYWORD) {
|
||
|
|
levelNext--;
|
||
|
|
}
|
||
|
|
} else if (foldComment && style == SCE_POWERSHELL_COMMENT) {
|
||
|
|
if (ch == '#') {
|
||
|
|
Sci_PositionU j = i + 1;
|
||
|
|
while ((j < endPos) && IsASpaceOrTab(styler.SafeGetCharAt(j))) {
|
||
|
|
j++;
|
||
|
|
}
|
||
|
|
if (styler.Match(j, "region")) {
|
||
|
|
levelNext++;
|
||
|
|
} else if (styler.Match(j, "endregion")) {
|
||
|
|
levelNext--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!IsASpace(ch))
|
||
|
|
visibleChars++;
|
||
|
|
if (atEOL || (i == endPos-1)) {
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char *const powershellWordLists[] = {
|
||
|
|
"Commands",
|
||
|
|
"Cmdlets",
|
||
|
|
"Aliases",
|
||
|
|
"Functions",
|
||
|
|
"User1",
|
||
|
|
"DocComment",
|
||
|
|
0
|
||
|
|
};
|
||
|
|
|
||
|
|
LexerModule lmPowerShell(SCLEX_POWERSHELL, ColourisePowerShellDoc, "powershell", FoldPowerShellDoc, powershellWordLists);
|
||
|
|
|