diff options
Diffstat (limited to 'scintilla/lexers/LexPowerShell.cxx')
| -rw-r--r-- | scintilla/lexers/LexPowerShell.cxx | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/scintilla/lexers/LexPowerShell.cxx b/scintilla/lexers/LexPowerShell.cxx new file mode 100644 index 0000000..b5fc8c5 --- /dev/null +++ b/scintilla/lexers/LexPowerShell.cxx @@ -0,0 +1,202 @@ +// 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 "ILexer.h"
+#include "Scintilla.h"
+#include "SciLexer.h"
+
+#include "PropSetSimple.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
+
+// Extended to accept accented characters
+static inline bool IsAWordChar(int ch) {
+ return ch >= 0x80 || isalnum(ch) || ch == '-' || ch == '_';
+}
+
+static void ColourisePowerShellDoc(unsigned int startPos, int length, int initStyle,
+ WordList *keywordlists[], Accessor &styler) {
+
+ WordList &keywords = *keywordlists[0];
+ WordList &keywords2 = *keywordlists[1];
+ WordList &keywords3 = *keywordlists[2];
+ WordList &keywords4 = *keywordlists[3];
+ WordList &keywords5 = *keywordlists[4];
+
+ styler.StartAt(startPos);
+
+ StyleContext sc(startPos, length, initStyle, styler);
+
+ for (; sc.More(); sc.Forward()) {
+
+ if (sc.state == SCE_POWERSHELL_COMMENT) {
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_POWERSHELL_DEFAULT);
+ }
+ } else if (sc.state == SCE_POWERSHELL_COMMENTSTREAM) {
+ if (sc.ch == '>' && sc.chPrev == '#') {
+ sc.ForwardSetState(SCE_POWERSHELL_DEFAULT);
+ }
+ } else if (sc.state == SCE_POWERSHELL_STRING) {
+ // This is a doubles quotes string
+ if (sc.ch == '\"') {
+ sc.ForwardSetState(SCE_POWERSHELL_DEFAULT);
+ }
+ } 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_NUMBER) {
+ if (!IsADigit(sc.ch)) {
+ sc.SetState(SCE_POWERSHELL_DEFAULT);
+ }
+ } 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(static_cast<char>(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.SetState(SCE_POWERSHELL_VARIABLE);
+ } else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
+ sc.SetState(SCE_POWERSHELL_NUMBER);
+ } else if (isoperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_POWERSHELL_OPERATOR);
+ } else if (IsAWordChar(sc.ch)) {
+ sc.SetState(SCE_POWERSHELL_IDENTIFIER);
+ }
+ }
+ }
+ 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(unsigned int startPos, int length, int initStyle,
+ WordList *[], Accessor &styler) {
+ bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
+ bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+ bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) != 0;
+ unsigned int endPos = startPos + length;
+ int visibleChars = 0;
+ int 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 (unsigned int i = startPos; i < endPos; i++) {
+ char ch = chNext;
+ chNext = styler.SafeGetCharAt(i + 1);
+ int stylePrev = style;
+ style = styleNext;
+ styleNext = styler.StyleAt(i + 1);
+ 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) {
+ levelNext++;
+ } else if (styleNext != SCE_POWERSHELL_COMMENTSTREAM) {
+ 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",
+ 0
+};
+
+LexerModule lmPowerShell(SCLEX_POWERSHELL, ColourisePowerShellDoc, "powershell", FoldPowerShellDoc, powershellWordLists);
+
|