Template:Sub
Extracts a substring of a string.
Usage
[kulemba source]{{sub|text|number of characters removed from the start|maximum length}}
"{{sub|20090624130510|0|0}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|20090624130510|0|3}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|20090624130510|8|0}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|20090624130510|8|3}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|café noir|0|4}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|café noir|1|3}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|café noir|3|2}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|café noir|4|2}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|22:06, 12 July 2010 User|19|5}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|22:06, 2 July 2010 User|19|4}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123|0|200}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123|1|200}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|1*3456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123|1|200}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil).".
Limitation
[kulemba source]<nowiki>...</nowiki> and <nowiki /> tags and their content are internally replaced by a code, which may affect the result:
"{{sub|<nowiki/>*café noir|1|9}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil)."."{{sub|*café noir|1|9}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil).".
Automatic newline
[kulemba source]Due to the automatic newline feature/bug a newline is added before any "*", "#", ":", and ";" in the substring, except when the substring starts at the start of the string:
"{{sub|*test|1|4}}"gives"Lua error: bad argument #1 to 'sub' (string expected, got nil).".