Difference between revisions of "LlDumpList2String"
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Lou Netizen (talk | contribs) m (Quick note that when typecasting list as string, each list item is converted to a string value (so floats/vectors/etc might "gain" unexpected digits of precision)) |
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|func_id=245|func_sleep=0.0|func_energy=10.0 | |func_id=245|func_sleep=0.0|func_energy=10.0 | ||
|func=llDumpList2String|return_type=string|p1_type=list|p1_name=src|p2_type=string|p2_name=separator | |func=llDumpList2String|return_type=string|p1_type=list|p1_name=src|p2_type=string|p2_name=separator | ||
|func_footnote | |func_footnote=Use [[llParseString2List]] or [[llParseStringKeepNulls]] to undo the process. | ||
Unlike [[llList2CSV]], which dumps a list to a comma-separated formatted string with no choice over the {{LSLPT|separator}}, llDumpList2String gives you more control. This can be useful if you don't trust commas as a {{LSLPT|separator}} because you might be working with data supplied to the script by a user who uses, say, commas as part of a street address. | |||
|func_desc | |func_desc | ||
|return_text=that is the list | |return_text=that is the list {{LSLPT|src}} converted to a string with {{LSLPT|separator}} between the entries. | ||
|spec | |spec | ||
|notes | |||
|caveats | |caveats | ||
|constants | |constants | ||
|examples=< | |examples= | ||
{ | <source lang="lsl2">list mylist = ["a", "b", "c", "d"]; | ||
state_entry() | string tmp = llDumpList2String(mylist, "**"); | ||
//tmp now equals: "a**b**c**d"</source> | |||
<source lang="lsl2">list mylist = [<10,5,7>, 100, "c", "d"]; | |||
string tmp = llDumpList2String(mylist, "**"); | |||
//tmp now equals: "<10,5,7>**100**c**d"</source> | |||
<source lang="lsl2">default{ | |||
state_entry(){ | |||
list my_list = [1, 2.0, "a string", llGetOwner()]; | list my_list = [1, 2.0, "a string", llGetOwner()]; | ||
llOwnerSay("<" + llDumpList2String(my_list,"><") + ">"); | llOwnerSay("<" + llDumpList2String(my_list,"><") + ">"); | ||
//says: "<1><2.000000><a string><a822ff2b-ff02-461d-b45d-dcd10a2de0c2>" | |||
} | } | ||
}</ | }</source> | ||
|helpers | |helpers | ||
|also_functions=*{{LSLG|llParseString2List}} | |also_functions=*{{LSLG|llParseString2List}} | ||
| Line 24: | Line 35: | ||
|also_tests | |also_tests | ||
|also_articles=*{{LSLG|Typecast}} | |also_articles=*{{LSLG|Typecast}} | ||
|notes= | |notes=Instead of using <code>llDumpList2String(myList, "")</code> you may wish to consider using the more efficient <code>(string)myList</code> as it produces an identical result with less memory usage due to eliminating a function-call. Each element of the list is converted to string format in the result, so floats expand to six digits of precision, rotations and vectors are represented with "<" and ">" characters, etc. | ||
|permission | |permission | ||
|negative_index | |negative_index | ||
Latest revision as of 15:49, 5 July 2017
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Summary
Function: string llDumpList2String( list src, string separator );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a string that is the list src converted to a string with separator between the entries.
| • list | src | |||
| • string | separator |
Use llParseString2List or llParseStringKeepNulls to undo the process.
Unlike llList2CSV, which dumps a list to a comma-separated formatted string with no choice over the separator, llDumpList2String gives you more control. This can be useful if you don't trust commas as a separator because you might be working with data supplied to the script by a user who uses, say, commas as part of a street address.
Examples
list mylist = ["a", "b", "c", "d"];
string tmp = llDumpList2String(mylist, "**");
//tmp now equals: "a**b**c**d"
list mylist = [<10,5,7>, 100, "c", "d"];
string tmp = llDumpList2String(mylist, "**");
//tmp now equals: "<10,5,7>**100**c**d"
default{
state_entry(){
list my_list = [1, 2.0, "a string", llGetOwner()];
llOwnerSay("<" + llDumpList2String(my_list,"><") + ">");
//says: "<1><2.000000><a string><a822ff2b-ff02-461d-b45d-dcd10a2de0c2>"
}
}
Notes
Instead of using llDumpList2String(myList, "") you may wish to consider using the more efficient (string)myList as it produces an identical result with less memory usage due to eliminating a function-call. Each element of the list is converted to string format in the result, so floats expand to six digits of precision, rotations and vectors are represented with "<" and ">" characters, etc.
See Also
Deep Notes
Signature |
|---|
function string llDumpList2String( list src, string separator ); |