Je was op zoek naar: whitespaces (Engels - Kinyarwanda)

detect whitespaces.
imyanyantakintu.

use detectspaces if you know that many whitespaces occur.
niba imyanyantakintu.

use this rule if you know that there can several whitespaces ahead, for example in the beginning of indented lines. this rule will skip all whitespace at once, instead of testing multiple rules and skipping one at the time due to no match.
iyi niba imyanyantakintu, ya: urugero: in i itangiriro bya hariho marije imirongo. gusimbuka byose ku rimwe, bya igerageza,... igikubo na gusimbuka:% s rimwe ku i igihe kuri oya bihuye.

& kppp; will scan the input stream for the specified string, and will store any character from the end of the string up to the next newline, in an internal buffer. trailing and leading whitespace will be stripped off.
& kppp; gusikana i iyinjiza ya: i ikurikiranyanyuguti, na icyo ari cyo cyose inyuguti: kuva: i impera bya i ikurikiranyanyuguti hejuru kuri i ibikurikira > umurongomushya, in by' imbere. na nyobora bidakora.