STRING::ISGRAPH 1g 2024-04-10 laplante@plcb.ca GOWEB/STRING — Check for Graphic Characters

title: “STRING::ISGRAPH” version: “1.0.0” date: 2024-04-10 author: “laplante@plcb.ca” section: “1g”

category: “GOWEB/STRING”

Name

string::isgraph Check for Graphic Characters

Synopsis

string::isgraph(string[, error: variable, string...])
isgraph(string[, error: variable, string...])

Description

The isgraph function checks whether the provided string contains only graphic (printable, non-space) characters.

Graphic characters include:

• Letters — uppercase and lowercase, from various alphabets (Latin, Greek, Cyrillic, etc.)
• Digits — 0 to 9
• Punctuation marks — commas, periods, question marks, exclamation marks, etc.
• Symbols — currency symbols, math symbols, arrows, etc.
• Emoji & emoticons — any visible Unicode graphic character
• Other visible characters — dingbats, geometric shapes, box drawing characters, etc.

Note: Whitespace characters such as space, tab, and newline are not considered graphic.

Examples

res={{
    isgraph("A"); "\n";
    isgraph(" "); "\n";
    isgraph("\n"); "\n";
    isgraph("0123456789"); "\n";
    isgraph("0123456789"); "\n";
    isgraph("01234e56789"); "\n";
    isgraph("01234.56789"); "\n";
    isgraph("0123456789"); "\n";
    isgraph("0123456789"); "\n";
    isgraph("01234e56789"); "\n";
    isgraph("01234.56789"); "\n";
}}.

Returns:

res=true
true
false
true
true
false
false
true
true
false
false

Author

laplante@plcb.ca

See Also

• String functions
  
• Index
  

Version

• 1.0.0 — 2024-04-10 — Initial version