C function exploration

Telis Tnilit

Hello guys, one quick question (once I didn’t find it using the search functionality):
I have a C code with lots of functions with big bodies among them. I make usage of the function list to switch from one to the other, but once the body of each of them is big (as i foresaid) I was wondering if any plugin exists which does the following: from wherever point I am within the body of the fuction to be able to go to the start/definition of the fuction. Or at least to understand in which Function I currently am, witout being necessary to go to the definition/start of function.
Thanks guys.

Scott Sumner

@Telis-Tnilit

So it would be nice if the Function List would dynamically highlight the function the caret is in as the caret is moved. Sadly, it does not do this…

I don’t see any reason that this behavior couldn’t be scripted using one of the plugins (Pythonscript / Luascript) but you’d probably want to define it more.

How would you want to be shown what function you are currently in? Examples include: dynamically on status bar, on-demand MessageBox, etc.
Is it sufficient that the name of the C function appears one line above an opening brace { and that brace always appears in column 1 (and the closing brace } also always appears in column 1)?

Jim Dailey

@Telis-Tnilit

Try out the TagsView plug-in. It highlights the current function and allows you to easily navigate to function definitions and more.

Scott Sumner

@Telis-Tnilit

So…not sure if the TagsView plug-in met your need, but I modified something I already had scripted (in Pythonscript) to do what you want , albeit in a basic way: The script needs to see the enclosing C function braces ( { and } ) in column 1, and when it does it takes the single line above the { as the function signature.

So for a C function like this:

void test2(void)
{
    x = 1;

    if (1)
    {
        x = 2;
    }
}

when the caret is inside the function body, the status bar will show this:

Imgur

I call the script CFunctionShowInStatusBar.py :

def CFSISB__callback_sci_UPDATEUI(args):
    def sb_print(x):
        if len(x) == 0: x = ' '  # writing '' to status bar does nothing, so change it!
        notepad.setStatusBar(STATUSBARSECTION.DOCTYPE, x)
    if notepad.getCurrentFilename().lower().endswith('.c'):
        f = editor.findText(FINDOPTION.REGEXP, editor.getCurrentPos(), 0, '^[{}]')
        if f != None:
            (found_start_pos, found_end_pos) = f
            if '{' == editor.getTextRange(found_start_pos, found_end_pos):
                line_nbr = editor.lineFromPosition(found_start_pos)
                if line_nbr == 0:
                    sb_print('not in function?')
                else:
                    sb_print('in function: ' + editor.getLine(line_nbr - 1).rstrip())
            else:
                sb_print('not in function')
        else:
            sb_print('not in function!')
    else:
        sb_print('')

editor.callback(CFSISB__callback_sci_UPDATEUI, [SCINTILLANOTIFICATION.UPDATEUI])```