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authorBjörn Linse <bjorn.linse@gmail.com>2017-05-10 17:39:09 +0200
committerGitHub <noreply@github.com>2017-05-10 17:39:09 +0200
commit031756c5e6a3dc2b9e811086a2531a41e4f58a19 (patch)
tree294effe35254d53766dfe2358415f26e8dd61cb9 /src/nvim/generators/gen_char_blob.lua
parentd9023b84e63f51611cf55f72ca5e021d64ba7ce9 (diff)
parent2d5920ae1ada751811e04bcc8d3a8fe4f890617a (diff)
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Merge pull request #6618 from bfredl/ui_event
generate UI remote event wrappers and add them to metadata
Diffstat (limited to 'src/nvim/generators/gen_char_blob.lua')
-rw-r--r--src/nvim/generators/gen_char_blob.lua48
1 files changed, 48 insertions, 0 deletions
diff --git a/src/nvim/generators/gen_char_blob.lua b/src/nvim/generators/gen_char_blob.lua
new file mode 100644
index 0000000000..d860375e26
--- /dev/null
+++ b/src/nvim/generators/gen_char_blob.lua
@@ -0,0 +1,48 @@
+if arg[1] == '--help' then
+ print('Usage:')
+ print(' gencharblob.lua source target varname')
+ print('')
+ print('Generates C file with big uint8_t blob.')
+ print('Blob will be stored in a static const array named varname.')
+ os.exit()
+end
+
+assert(#arg == 3)
+
+local source_file = arg[1]
+local target_file = arg[2]
+local varname = arg[3]
+
+source = io.open(source_file, 'r')
+target = io.open(target_file, 'w')
+
+target:write('#include <stdint.h>\n\n')
+target:write(('static const uint8_t %s[] = {\n'):format(varname))
+
+num_bytes = 0
+MAX_NUM_BYTES = 15 -- 78 / 5: maximum number of bytes on one line
+target:write(' ')
+
+increase_num_bytes = function()
+ num_bytes = num_bytes + 1
+ if num_bytes == MAX_NUM_BYTES then
+ num_bytes = 0
+ target:write('\n ')
+ end
+end
+
+for line in source:lines() do
+ for i = 1,string.len(line) do
+ byte = string.byte(line, i)
+ assert(byte ~= 0)
+ target:write(string.format(' %3u,', byte))
+ increase_num_bytes()
+ end
+ target:write(string.format(' %3u,', string.byte('\n', 1)))
+ increase_num_bytes()
+end
+
+target:write(' 0};\n')
+
+source:close()
+target:close()