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fix substr help (fixes #21192)

(cherry picked from commit 2bed7ab)
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jef-n authored and nyalldawson committed Feb 7, 2019
1 parent b79e9e6 commit eb8e36c27dad5413936218893393031e7d0a9915
Showing with 2 additions and 2 deletions.
  1. +2 −2 resources/function_help/json/substr
@@ -3,11 +3,11 @@
"type": "function",
"description": "Returns a part of a string.",
"arguments": [ {"arg":"string","description":"the full input string"},
{"arg":"start","description":"integer representing start position to extract from; if start is negative, the return string will begin at the end of the string minus the start value"},
{"arg":"start","description":"integer representing start position to extract beginning with 1; if start is negative, the return string will begin at the end of the string minus the start value"},
{"arg":"length","optional":true,"description":"integer representing length of string to extract; if length is negative, the return string will omit the given length of characters from the end of the string"}
],
"examples": [ { "expression":"substr('HELLO WORLD',3,5)", "returns":"'LLO W'"},
{ "expression":"substr('HELLO WORLD',6)", "returns":"'WORLD'"},
{ "expression":"substr('HELLO WORLD',6)", "returns":"' WORLD'"},
{ "expression":"substr('HELLO WORLD',-5)","returns":"'WORLD'"},
{ "expression":"substr('HELLO',3,-1)", "returns":"'LL'"},
{ "expression":"substr('HELLO WORLD',-5,2)","returns":"'WO'"},

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