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genhelp: improve to work with lua 5.1 

Fix the script to not contain \x00 escape which was the only new
feature used.

Fix the meson build script to use given lua interpreter for running
the genhelp.lua.

Based on patch from Daniel Golle <daniel@makrotopia.org>
cute-signatures
Timo Teräs 2021-07-16 09:52:34 +03:00
parent 2a25a595ce
commit 7b30db8dc8
2 changed files with 7 additions and 7 deletions
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10
src/genhelp.lua
View File

@ -198,12 +198,12 @@ end
function scdoc:render_optgroups(out)
for _, options in ipairs(self.optgroup) do
if #options > 0 then
table.insert(out, options.name .. "\x00")
table.insert(out, options.name .. "\0")
self:render_options(out, options)
if options.name == self.applet then
self:render_footer(out)
end
table.insert(out, "\x00")
table.insert(out, "\0")
end
end
end
@ -216,7 +216,7 @@ function scdoc:render(out)
local width = self.width
if not self.applet then return end
table.insert(out, self.applet .. "\x00")
table.insert(out, self.applet .. "\0")
table.insert(out, table.concat(self.usage, "\n"))
table.insert(out, "\n")
if #self.commands > 0 then
@ -239,7 +239,7 @@ function scdoc:render(out)
if self.manpage == "apk" then self:render_footer(out)
else table.insert(out, "\n") end
end
table.insert(out, "\x00")
table.insert(out, "\0")
end
local function compress(data)
@ -293,7 +293,7 @@ local out = {}
for _, doc in ipairs(f) do doc:render(out) end
for _, doc in ipairs(f) do doc:render_optgroups(out) end
table.insert(out, "\x00")
table.insert(out, "\0")
local help = table.concat(out)
--io.stderr:write(help)

4
src/meson.build
View File

@ -78,14 +78,14 @@ apk_src = [
]
if lua_bin.found()
genhelp_script = find_program('./genhelp.lua')
genhelp_script = files('genhelp.lua')
generated_help = custom_target(
'help.h',
capture: true,
output: 'help.h',
input: man_files,
command: [genhelp_script, '@INPUT@'],
command: [lua_bin, genhelp_script, '@INPUT@'],
)
else
generated_help = custom_target(