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v/cmd/tools/modules/vhelp/vhelp.v

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V

module vhelp
import os
pub fn show_topic(topic string) {
vexe := os.real_path(os.getenv('VEXE'))
vroot := os.dir(vexe)
target_topic := os.join_path(vroot, 'vlib', 'v', 'help', '${topic}.txt')
content := os.read_file(target_topic) or {
eprintln('Unknown topic: ${topic}')
exit(1)
}
println(content)
}