Using a function that returns a string in the str.*() functions fails

[Stein Rørvik]

There seems to be a glitch in the macro parser when trying to use a function that returns a string as input in the str.*() functions:

The following fails:

run("Blobs (25K)");
if (getTitle().contains("blobs")) showMessage("this is the blobs image");

run("Blobs (25K)");
if (getTitle().endsWith("gif")) showMessage("this is a GIF image");


The following equivalent works:

run("Blobs (25K)");
imageTitle = getTitle();
if (imageTitle.contains("blobs")) showMessage("this is the blobs image");
if (imageTitle.endsWith("gif")) showMessage("this is a GIF image");


Another thing: It would be useful if it was mentioned in the macro functions documentation what version number these useful str.*() functions were introduced, so that one can insert the appropriate requires() statement before using them in a macro.


Stein

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[Wayne Rasband-2]

> On Mar 8, 2021, at 10:35 AM, Stein Rørvik <[hidden email]> wrote:
>
> There seems to be a glitch in the macro parser when trying to use a function that returns a string as input in the str.*() functions:
>
> The following fails:
>
> run("Blobs (25K)");
> if (getTitle().contains("blobs")) showMessage("this is the blobs image");
>
> run("Blobs (25K)");
> if (getTitle().endsWith("gif")) showMessage("this is a GIF image”);

This bug is fixed in the 1.53i29 daily build.

> Another thing: It would be useful if it was mentioned in the macro functions documentation what version number these useful str.*() functions were introduced, so that one can insert the appropriate requires() statement before using them in a macro.

I updated the documentation for the str.*() functions, under “String Functions” in the Macro Functions list, so it mentions the version of ImageJ required.

These string functions, where 's' is a string variable, are also available in ImageJ 1.52t and newer: s.charAt(i), s.contains(s2), s.endsWith(s2), s.indexOf(s2), s.lastIndexOf(s2), s.length, s.matches(s2), s.replace(s1,s2), s.startsWith(s2), s.substring(i1,i2), s.substring(i), s.toLowerCase, s.toUpperCase, s.trim.

-wayne

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[Stein Rørvik]

Thanks!

Stein

-----Original Message-----
Sent: 12. mars 2021 19:47
Subject: Re: Using a function that returns a string in the str.*() functions fails

> On Mar 8, 2021, at 10:35 AM, Stein Rørvik <[hidden email]> wrote:
>
> There seems to be a glitch in the macro parser when trying to use a function that returns a string as input in the str.*() functions:
>
> The following fails:
>
> run("Blobs (25K)");
> if (getTitle().contains("blobs")) showMessage("this is the blobs image");
>
> run("Blobs (25K)");
> if (getTitle().endsWith("gif")) showMessage("this is a GIF image");

This bug is fixed in the 1.53i29 daily build.

> Another thing: It would be useful if it was mentioned in the macro functions documentation what version number these useful str.*() functions were introduced, so that one can insert the appropriate requires() statement before using them in a macro.

I updated the documentation for the str.*() functions, under "String Functions" in the Macro Functions list, so it mentions the version of ImageJ required.

These string functions, where 's' is a string variable, are also available in ImageJ 1.52t and newer: s.charAt(i), s.contains(s2), s.endsWith(s2), s.indexOf(s2), s.lastIndexOf(s2), s.length, s.matches(s2), s.replace(s1,s2), s.startsWith(s2), s.substring(i1,i2), s.substring(i), s.toLowerCase, s.toUpperCase, s.trim.

-wayne

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