ref: 2c105470a3aeac1e4d9afac87bc078450b8d2a27 dir: /sys/src/libc/port/needsrcquote.c/
#include <u.h> #include <libc.h> int needsrcquote(int c) { if(c <= ' ') return 1; if(utfrune("`^#*[]=|\\?${}()'<>&;", c)) return 1; return 0; }