Function ImTextCalcWordWrapNextLineStart

src/imgui/imgui_draw.cpp:5344–5352

Trim trailing space and find beginning of next line

// Trim trailing space and find beginning of next line
const char* ImTextCalcWordWrapNextLineStart(const char* text, const char* text_end, ImDrawTextFlags flags)
{
    if ((flags & ImDrawTextFlags_WrapKeepBlanks) == 0)
        while (text < text_end && ImCharIsBlankA(*text))
            text++;
    if (*text == '\n')
        text++;
    return text;
}

// Simple word-wrapping for English, not full-featured. Please submit failing cases!
// This will return the next location to wrap from. If no wrapping if necessary, this will fast-forward to e.g. text_end.