查看“模板:Substring”的源代码

<includeonly>{{#vardefine:substring_l|{{#ifeq:{{{zerobased|}}}|true|{{#ifexpr:{{{2|}}}>=0|{{#expr:{{{2|}}}+1}}|{{{2|}}}}}|{{{2|}}}}}}}{{#vardefine:substring_r|{{#ifeq:{{{zerobased|}}}|true|{{#ifexpr:{{{3|}}}>=0|{{#expr:{{{3|}}}+1}}|{{{3|}}}}}|{{{3|}}}}}}}{{#ifeq:{{{dijkstra|}}}|true|{{#vardefine:substring_r|{{#expr:{{#var:r}}-1}}}}|}}{{#vardefine:substring_return|{{{{{|safesubst:}}}#invoke:String|sub|{{{1|}}}|{{#var:substring_l}}|{{#var:substring_r}}}}}}{{#vardefine:substring_errrev|{{{{{|safesubst:}}}#invoke:String|sub|12|2|1}}}}{{#vardefine:substring_erroor|{{{{{|safesubst:}}}#invoke:String|sub|1|2|3}}}}{{#ifeq:{{#var:substring_return}}|{{#var:substring_errrev}}|{{#ifeq:{{{ignorerevindx|}}}|true||{{#var:substring_return}}}}|{{#ifeq:{{#var:substring_return}}|{{#var:substring_erroor}}|{{#ifeq:{{{ignoreoorindx|}}}|true||{{#var:substring_return}}}}|{{#var:substring_return}}}}}}</includeonly><noinclude>{{Doc}}</noinclude>