curs_sp_funcs - Linux

Overview

curs_sp_funcs finds special functions by searching a cursor’s buffer for regular expressions. It’s invaluable for developers using a command line interface or text editor, allowing them to effortlessly locate and operate on specific text patterns.

Syntax

curs_sp_funcs [options] <FUNCTION> <CURSOR_MARK> <CURSOR_MARK>

Options/Flags

• -a, –all: Find all occurrences of the function within the buffer.
• -n, –number: Print the line number of each occurrence.
• -s, –silent: Don’t display any output, only return success code.
• -f, –follow: Follow the cursor as it moves and update results.
• -e, –regex: Specify a custom regular expression to match.
• -h, –help: Display usage information and exit.

Examples

Find all occurrences of the main() function in the current buffer:

curs_sp_funcs main

Find the line number of the next occurrence of the foo() function:

curs_sp_funcs -n foo $HOME/test.txt

Use a custom regular expression to find functions matching a specific pattern:

curs_sp_funcs -e '^_?[A-Za-z_]+\(...\)$'

Common Issues

• If no matches are found, curs_sp_funcs returns an error message.
• Incorrect regular expressions can lead to unexpected results.
• When using the -f option, ensure the cursor is in the correct position before executing the command.

Integration

• Combine with grep to filter results based on additional criteria.
• Use with sed or awk for advanced text manipulation.
• As part of a script or command chain to automate complex tasks.

Related Commands

• grep: Find text patterns in files and buffers.
• sed: Stream editor for text editing.
• awk: Pattern-based text processing tool.