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//CHECKSTYLE:OFF
package org.scilab.modules.scinotes;
import java.io.IOException;
import javax.swing.text.Element;
import javax.swing.text.BadLocationException;
@javax.annotation.Generated("JFlex")
@SuppressWarnings("fallthrough")
%%
%public
%class IndentScanner
%final
%unicode
%char
%type int
%switch
%{
private ScilabDocument doc;
private Element elem;
public IndentScanner(ScilabDocument doc) {
this.doc = doc;
this.elem = doc.getDefaultRootElement();
}
public int getIndentNumber(int lineNumber, char type) {
if (lineNumber < 0) {
return 0;
}
try {
Element line = elem.getElement(lineNumber);
int startL = line.getStartOffset();
int endL = line.getEndOffset();
yyreset(new ScilabDocumentReader(doc, startL, endL));
switch (type) {
case ' ':
yybegin(WHITE);
break;
case '\t':
yybegin(TAB);
break;
default:
yybegin(WHITE);
}
return yylex();
} catch (IOException e) {
return 0;
}
}
public int getTabsAtBeginning(int pos) {
Element line = elem.getElement(pos);
int startL = line.getStartOffset();
int endL = line.getEndOffset();
try {
yyreset(new ScilabDocumentReader(doc, startL, endL));
yybegin(BEG);
if (yylex() == 1) {
return yylength();
}
} catch (IOException e) {
return 0;
}
return 0;
}
public void getIndentLevel(int pos, int[] level) {
Element line = elem.getElement(elem.getElementIndex(pos));
int startL = line.getStartOffset();
int endL = line.getEndOffset();
level[0] = 0;
level[1] = 0;
try {
yyreset(new ScilabDocumentReader(doc, startL, endL));
yybegin(INDENT);
do {
switch (yylex()) {
case 0:
break;
case 1:
level[1]++;
break;
case 2:
if (level[1] > 0) {
level[1]--;
} else {
level[0]++;
}
break;
case 3:
if (level[1] == 0) {
level[0]++;
level[1]++;
}
}
} while (zzMarkedPos != 0);
} catch (IOException e) { }
}
%}
%eofval{
return 0;
%eofval}
/* main character classes */
eol = \n
comment = "//".*{eol}
spec = [a-zA-Z0-9%_#!$?0-9]
string = (([^\'\"\r\n]*)|([\'\"]{2}))+
qstring = (\"|\'){string}(\"|\')
transp = ({spec} | ")" | "]" | "}") "'"
indentP = ("function" | "if" | "for" | "while" | "try" | "select")
indentPx = {indentP}{spec}+
xindentP = {spec}{indentP}
indentM = ("endfunction" | "end")
indentMx = {indentM}{spec}+
xindentM = {spec}{indentM}
indentMP = ("else" | "elseif" | "catch" | "case")
indentMPx = {indentMP}{spec}+
xindentMP = {spec}{indentMP}
%x INDENT, WHITE, TAB, BEG
%%
<INDENT> {
{transp} |
{comment} |
{indentPx} |
{qstring} { }
{indentP} {
return 1;
}
{indentM} {
return 2;
}
{indentMP} {
return 3;
}
. |
{xindentP} |
{xindentM} |
{xindentMP} |
{indentMPx} |
{indentMx} { }
{eol} {
return 0;
}
}
<WHITE> {
" "* {
return yylength();
}
. |
{eol} {
return 0;
}
}
<TAB> {
"\t"* {
return yylength();
}
. |
{eol} {
return 0;
}
}
<BEG> {
^[ \t]+ {
return 1;
}
. |
{eol} { }
}
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