annotate runtime/indent/xml.vim @ 7601:88c4c634e919

Added tag v7.4.1099 for changeset fa59fafb6a9464b579504aa6c5abe6d5d0382f0d
author Christian Brabandt <cb@256bit.org>
date Fri, 15 Jan 2016 22:15:05 +0100
parents 9910cbff5f16
children 63b0b7b79b25
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 " Language: xml
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2 " Maintainer: Johannes Zellner <johannes@zellner.org>
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3 " Last Change: 2012 Jul 25
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4 " Notes: 1) does not indent pure non-xml code (e.g. embedded scripts)
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5 " 2) will be confused by unbalanced tags in comments
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6 " or CDATA sections.
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7 " 2009-05-26 patch by Nikolai Weibull
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8 " TODO: implement pre-like tags, see xml_indent_open / xml_indent_close
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9
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10 " Only load this indent file when no other was loaded.
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11 if exists("b:did_indent")
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12 finish
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13 endif
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14 let b:did_indent = 1
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15 let s:keepcpo= &cpo
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16 set cpo&vim
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17
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18 " [-- local settings (must come before aborting the script) --]
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19 setlocal indentexpr=XmlIndentGet(v:lnum,1)
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20 setlocal indentkeys=o,O,*<Return>,<>>,<<>,/,{,}
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21
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22 if !exists('b:xml_indent_open')
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23 let b:xml_indent_open = '.\{-}<\a'
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24 " pre tag, e.g. <address>
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25 " let b:xml_indent_open = '.\{-}<[/]\@!\(address\)\@!'
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26 endif
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27
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28 if !exists('b:xml_indent_close')
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29 let b:xml_indent_close = '.\{-}</'
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30 " end pre tag, e.g. </address>
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31 " let b:xml_indent_close = '.\{-}</\(address\)\@!'
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32 endif
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33
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34 let &cpo = s:keepcpo
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35 unlet s:keepcpo
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36
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37 " [-- finish, if the function already exists --]
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38 if exists('*XmlIndentGet')
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39 finish
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40 endif
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41
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42 let s:keepcpo= &cpo
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43 set cpo&vim
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44
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45 fun! <SID>XmlIndentWithPattern(line, pat)
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46 let s = substitute('x'.a:line, a:pat, "\1", 'g')
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47 return strlen(substitute(s, "[^\1].*$", '', ''))
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48 endfun
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49
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50 " [-- check if it's xml --]
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51 fun! <SID>XmlIndentSynCheck(lnum)
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52 if '' != &syntax
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53 let syn1 = synIDattr(synID(a:lnum, 1, 1), 'name')
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54 let syn2 = synIDattr(synID(a:lnum, strlen(getline(a:lnum)) - 1, 1), 'name')
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55 if '' != syn1 && syn1 !~ 'xml' && '' != syn2 && syn2 !~ 'xml'
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56 " don't indent pure non-xml code
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57 return 0
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58 elseif syn1 =~ '^xmlComment' && syn2 =~ '^xmlComment'
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59 " indent comments specially
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60 return -1
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61 endif
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62 endif
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63 return 1
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64 endfun
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65
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66 " [-- return the sum of indents of a:lnum --]
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67 fun! <SID>XmlIndentSum(lnum, style, add)
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68 let line = getline(a:lnum)
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69 if a:style == match(line, '^\s*</')
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70 return (&sw *
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71 \ (<SID>XmlIndentWithPattern(line, b:xml_indent_open)
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72 \ - <SID>XmlIndentWithPattern(line, b:xml_indent_close)
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73 \ - <SID>XmlIndentWithPattern(line, '.\{-}/>'))) + a:add
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74 else
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75 return a:add
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76 endif
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77 endfun
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78
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79 fun! XmlIndentGet(lnum, use_syntax_check)
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80 " Find a non-empty line above the current line.
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81 let lnum = prevnonblank(a:lnum - 1)
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82
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83 " Hit the start of the file, use zero indent.
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84 if lnum == 0
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85 return 0
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86 endif
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87
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88 if a:use_syntax_check
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89 let check_lnum = <SID>XmlIndentSynCheck(lnum)
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90 let check_alnum = <SID>XmlIndentSynCheck(a:lnum)
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91 if 0 == check_lnum || 0 == check_alnum
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92 return indent(a:lnum)
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93 elseif -1 == check_lnum || -1 == check_alnum
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94 return -1
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95 endif
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96 endif
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97
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98 let ind = <SID>XmlIndentSum(lnum, -1, indent(lnum))
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99 let ind = <SID>XmlIndentSum(a:lnum, 0, ind)
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100
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101 return ind
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102 endfun
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103
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104 let &cpo = s:keepcpo
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105 unlet s:keepcpo
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106
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107 " vim:ts=8