notepad-plus-plus-legacy/scintilla/src/LexPowerShell.cxx

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// 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 <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
// Extended to accept accented characters
static inline bool IsAWordChar(int ch) {
return ch >= 0x80 || isalnum(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];
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_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);
}
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.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();
}
LexerModule lmPowerShell(SCLEX_POWERSHELL, ColourisePowerShellDoc, "powershell");