mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-23 00:02:38 -05:00
18 lines
1.1 KiB
Plaintext
18 lines
1.1 KiB
Plaintext
{
|
|
"name": "substr",
|
|
"type": "function",
|
|
"groups": ["String"],
|
|
"description": "Returns a part of a string.",
|
|
"arguments": [ {"arg":"string","description":"the full input string"},
|
|
{"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',-5)","returns":"'WORLD'"},
|
|
{ "expression":"substr('HELLO',3,-1)", "returns":"'LL'"},
|
|
{ "expression":"substr('HELLO WORLD',-5,2)","returns":"'WO'"},
|
|
{ "expression":"substr('HELLO WORLD',-5,-1)","returns":"'WORL'"}
|
|
]
|
|
}
|