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82 lines
2.6 KiB
82 lines
2.6 KiB
9 years ago
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#! /bin/sed -nf
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1i\
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/** @page database Database Schema\
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\
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@dot\
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digraph schema {
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# get everithing on one single line
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H;$!d;$x
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# remove all single-line comment lines
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s/\n--[^\n]*//g
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# reduce spaces
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s,\t\| \+, ,g
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# remove multiline comments
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:f;s,\(.*\)/\*.*\*/[ \n]*;*,\1,g;tf
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# remove empty lines
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s,\n\+,\n,g
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# remove unknown commands
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s,\(;\|\n\) *\(DELIMITER\|USE\|DROP\|CREATE[ \n]\+DATABASE\)[ \n]\+[^;]*;\+,,ig
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# convert special characters within quotes
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:a;s/^\(\([^"]*"[^",]*"\)*[^"]*"[^"]*\),\([^"]*".*\)/\1\##COMMA##\3/g;ta
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:c;s/^\(\([^']*'[^',]*'\)*[^']*'[^']*\),\([^']*'.*\)/\1\##COMMA##\3/g;tc
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# backup everything to the buffer
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# then analyze only on one create table
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:i
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h
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s,.*\(create[ \n]\+table[^;]*;\).*,\1,ig
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# start html table node
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s|CREATE[ \n]\+TABLE[ \n]\+\(if[ \n]\+not[ \n]\+exists[ \n]\+\)\?`\?\(\w\+\)`\?| \2\n [shape=none, margin=0, label=<\n <table bgcolor="#dddddd">\n <tr><td bgcolor="#ddddff" colspan="4"><b>\2</b></td></tr>|ig
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# remove key definitions
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s/[),][\n ]*\(PRIMARY[ \n]\+\)\?KEY[ \n]\+[^(]*([^)]*)//gi
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# move foreign keys as relation to the end
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:b;s/\(\w\+\)\([^;]*\)FOREIGN[\n ]\+KEY[ \n]*([ \n]*`\?\([a-z]\+\)`\?[ \n]*)[ \n]*REFERENCES[ \n]*`\?\([a-z]\+\)`\?[ \n]*([ \n]*`\?\([a-z]\+\)`\?[ \n]*)[ \n]*\([^,)]*\)\([,)].*\)/\1\2\7\n \1:\3 -> \4:\5 [label="\6"]##SEMICOLON##/ig;tb
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# create table rows
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s|[(,][ \n]*`\?\(\w\+\)`\?[ \n]\+\(\w\+\(([^)]\+)\)\?\)[ \n]*\([^,)]*\)[ \n]\+COMMENT[ \n]*["']\([^"']*\)["'][ \n]*|\n <tr><td align="left" port="\1"><b>\1</b></td><td align="left">\2</td><td align="left">\4</td><td align="left">\5</td></tr>|gi
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s|[(,][ \n]*`\?\(\w\+\)`\?[ \n]\+\(\w\+\(([^)]\+)\)\?\)[ \n]*\([^,)]*\)|\n <tr><td align="left" port="\1"><b>\1</b></td><td align="left">\2</td><td align="left">\4</td></tr>|g
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# add line breaks for long lines
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s|\(<td[^>]*>[^<]\{30,40\}\)[ \n]\+\([^<]\{20,\}</td>\)|\1<br/>\2|g
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#:d;s|\(<br/>[^<]\{30,40\}\)[ \n]\+\([^<]\{20,\}</td>\)|\1<br/>\2|g;td
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# add table comment below
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:k;tk
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s|[ \n]*)[^)]*COMMENT[ \n]*=[ \n]*["']\?\([^"']*\)["']\?[^;]*|\n <tr><td bgcolor="#ddddff" colspan="4">\1</td></tr>|ig;th
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s|)[^);]*;|\n;|ig
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:h
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# cleanup comment below, add line breaksfor long lines
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s|\(<td[^>]*>[^<]\{60,80\}\)[ \n]\+\([^<]\{30,\}</td>\)|\1<br/>\2|g
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#:e;s|\(<br/>[^<]\{60,80\}\)[ \n]\+\([^<]\{30,\}</td>\)|\1<br/>\2|g;te
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# close table
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s|;|\n </table>\n >];|ig
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# convert ##COMMA## to ,
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s|##COMMA##|,|g
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# convert ##SEMICOLON## to ;
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s,##SEMICOLON##,;,g
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# print one table
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p
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# get buffer back and remove the table that has just been analyzed
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x
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s,\(.*\)create[ \n]\+table[^;]*;\(.*\),\1\2,ig
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ti
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$a\
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}\
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@enddot\
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*/
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