75 lines
2.3 KiB
VimL
Executable file
75 lines
2.3 KiB
VimL
Executable file
" String handling.
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"
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" Author: Peter Odding <peter@peterodding.com>
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" Last Change: September 17, 2014
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" URL: http://peterodding.com/code/vim/misc/
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function! xolox#misc#str#slug(s) " {{{1
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" Convert a string to a "slug" - something that can be safely used in
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" filenames and URLs without worrying about quoting/escaping of special
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" characters.
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return join(split(tolower(a:s), '\W\+'), '-')
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endfunction
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function! xolox#misc#str#ucfirst(s) " {{{1
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" Uppercase the first character in a string (the first argument).
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return substitute(a:s, '^.', '\U\0', '')
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endfunction
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function! xolox#misc#str#unescape(s) " {{{1
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" Remove back slash escapes from a string (the first argument).
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return substitute(a:s, '\\\(\_.\)', '\1', 'g')
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endfunction
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function! xolox#misc#str#compact(s) " {{{1
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" Compact whitespace in a string (the first argument).
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return join(split(a:s), " ")
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endfunction
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function! xolox#misc#str#trim(s) " {{{1
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" Trim all whitespace from the start and end of a string (the first
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" argument).
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return substitute(a:s, '^\_s*\(.\{-}\)\_s*$', '\1', '')
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endfunction
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function! xolox#misc#str#indent(text, num_spaces) " {{{1
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" Indent all lines in a multi-line string (the first argument) with a
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" specific number of *space characters* (the second argument, an integer).
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let lines = split(a:text, "\n")
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let indent = repeat(' ', a:num_spaces)
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let [idx, limit] = [0, len(lines)]
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while idx < limit
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if lines[idx] =~ '\S'
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let lines[idx] = indent . lines[idx]
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endif
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let idx += 1
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endwhile
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return join(lines, "\n")
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endfunction
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function! xolox#misc#str#dedent(text) " {{{1
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" Remove common whitespace from a multi line string.
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let lines = split(a:text, "\n")
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" First we need to determine the common indentation of all non-empty lines.
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for line in lines
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if line =~ '\S'
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let indent = matchstr(line, '^\s*')
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if !exists('common_indent')
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let common_indent = indent
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elseif len(indent) < len(common_indent)
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let common_indent = indent
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endif
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endif
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endfor
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" Now we will strip the common indentation.
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let [idx, limit] = [0, len(lines)]
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let pattern = '^' . common_indent
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while idx < limit
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let lines[idx] = substitute(lines[idx], pattern, '', '')
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let idx += 1
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endwhile
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return join(lines, "\n")
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endfunction
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" vim: ts=2 sw=2 et
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