I don't understand the behavior of the program (with output) below.  All I'm doing is testing all the filenames of the files in the current directory for an expression I know is in several of the names.  Only one filename tests positive. Can anyone tell me what is happening?

Here is the code (RegExpTest.d)
==================================
import std.file;
import std.regexp;

int main(char[][] args) {

char[] testExp = "Exp";
RegExp filenameRegExp = new RegExp(testExp, "m");
char[][] filenames = std.file.listdir(".");

printf("Testing filenames in current directory for: %.*s\n", testExp);

foreach ( char[] filename; filenames) {
int result = filenameRegExp.test(filename);
if (result) {
printf("  %d Filename match: %.*s\n", result, filename);
}
else {
printf("  %d Filename mis-match: %.*s\n", result, filename);
}
}

return 0;
}


Here is the (commented) output
========================
Testing filenames in current directory for: Exp
0 Filename mis-match: clean.bat
0 Filename mis-match: compile.bat
0 Filename mis-match: compile_test.bat
0 Filename mis-match: env.bat
0 Filename mis-match: GrepTree.d
0 Filename mis-match: GrepTree.java
0 Filename mis-match: GrepTree.obj
0 Filename mis-match: grep_tree.exe
0 Filename mis-match: grep_tree.map
0 Filename mis-match: RegExpTest.d      <-- should pass
1 Filename match: RegExpTest.exe
0 Filename mis-match: RegExpTest.map    <-- should pass
0 Filename mis-match: RegExpTest.obj    <-- should pass
0 Filename mis-match: test_data
0 Filename mis-match: wc.d
0 Filename mis-match: wc.exe
0 Filename mis-match: wc.map
0 Filename mis-match: wc.obj

Try filenameRegExp.test(filename, 0)

"Clint Olson" <Clint_member@pathlink.com> wrote in message news:bs03ui$3015$1@digitaldaemon.com...
> I don't understand the behavior of the program (with output) below.  All
I'm
> doing is testing all the filenames of the files in the current directory
for an
> expression I know is in several of the names.  Only one filename tests
positive.
> Can anyone tell me what is happening?
>
> Here is the code (RegExpTest.d)
> ==================================
> import std.file;
> import std.regexp;
>
> int main(char[][] args) {
>
> char[] testExp = "Exp";
> RegExp filenameRegExp = new RegExp(testExp, "m");
> char[][] filenames = std.file.listdir(".");
>
> printf("Testing filenames in current directory for: %.*s\n", testExp);
>
> foreach ( char[] filename; filenames) {
> int result = filenameRegExp.test(filename);
> if (result) {
> printf("  %d Filename match: %.*s\n", result, filename);
> }
> else {
> printf("  %d Filename mis-match: %.*s\n", result, filename);
> }
> }
>
> return 0;
> }
>
>
> Here is the (commented) output
> ========================
> Testing filenames in current directory for: Exp
> 0 Filename mis-match: clean.bat
> 0 Filename mis-match: compile.bat
> 0 Filename mis-match: compile_test.bat
> 0 Filename mis-match: env.bat
> 0 Filename mis-match: GrepTree.d
> 0 Filename mis-match: GrepTree.java
> 0 Filename mis-match: GrepTree.obj
> 0 Filename mis-match: grep_tree.exe
> 0 Filename mis-match: grep_tree.map
> 0 Filename mis-match: RegExpTest.d      <-- should pass
> 1 Filename match: RegExpTest.exe
> 0 Filename mis-match: RegExpTest.map    <-- should pass
> 0 Filename mis-match: RegExpTest.obj    <-- should pass
> 0 Filename mis-match: test_data
> 0 Filename mis-match: wc.d
> 0 Filename mis-match: wc.exe
> 0 Filename mis-match: wc.map
> 0 Filename mis-match: wc.obj
>
>

Yup, fixed it.  Thanks!  I see in the source code what is going on.  Fixing the docs to include that form of the test() method would be useful for future RegExp users :)

In article <bs08b7$527$1@digitaldaemon.com>, Walter says...
>
>Try filenameRegExp.test(filename, 0)
>
>"Clint Olson" <Clint_member@pathlink.com> wrote in message news:bs03ui$3015$1@digitaldaemon.com...
>> I don't understand the behavior of the program (with output) below.  All
>I'm
>> doing is testing all the filenames of the files in the current directory
>for an
>> expression I know is in several of the names.  Only one filename tests
>positive.
>> Can anyone tell me what is happening?
>>
>> Here is the code (RegExpTest.d)
>> ==================================
>> import std.file;
>> import std.regexp;
>>
>> int main(char[][] args) {
>>
>> char[] testExp = "Exp";
>> RegExp filenameRegExp = new RegExp(testExp, "m");
>> char[][] filenames = std.file.listdir(".");
>>
>> printf("Testing filenames in current directory for: %.*s\n", testExp);
>>
>> foreach ( char[] filename; filenames) {
>> int result = filenameRegExp.test(filename);
>> if (result) {
>> printf("  %d Filename match: %.*s\n", result, filename);
>> }
>> else {
>> printf("  %d Filename mis-match: %.*s\n", result, filename);
>> }
>> }
>>
>> return 0;
>> }
>>
>>
>> Here is the (commented) output
>> ========================
>> Testing filenames in current directory for: Exp
>> 0 Filename mis-match: clean.bat
>> 0 Filename mis-match: compile.bat
>> 0 Filename mis-match: compile_test.bat
>> 0 Filename mis-match: env.bat
>> 0 Filename mis-match: GrepTree.d
>> 0 Filename mis-match: GrepTree.java
>> 0 Filename mis-match: GrepTree.obj
>> 0 Filename mis-match: grep_tree.exe
>> 0 Filename mis-match: grep_tree.map
>> 0 Filename mis-match: RegExpTest.d      <-- should pass
>> 1 Filename match: RegExpTest.exe
>> 0 Filename mis-match: RegExpTest.map    <-- should pass
>> 0 Filename mis-match: RegExpTest.obj    <-- should pass
>> 0 Filename mis-match: test_data
>> 0 Filename mis-match: wc.d
>> 0 Filename mis-match: wc.exe
>> 0 Filename mis-match: wc.map
>> 0 Filename mis-match: wc.obj
>>
>>
>
>