| ... | ... | @@ -1208,12 +1208,15 @@ pub fn getenvZ(key: [*:0]const u8) ?[]const u8 { |
| 1208 | 1208 | |
| 1209 | 1209 | /// Windows-only. Get an environment variable with a null-terminated, WTF-16 encoded name. |
| 1210 | 1210 | /// See also `getenv`. |
| 1211 | /// This function first attempts a case-sensitive lookup. If no match is found, and `key` |
| 1212 | /// is ASCII, then it attempts a second case-insensitive lookup. |
| 1211 | 1213 | pub fn getenvW(key: [*:0]const u16) ?[:0]const u16 { |
| 1212 | 1214 | if (builtin.os.tag != .windows) { |
| 1213 | 1215 | @compileError("std.os.getenvW is a Windows-only API"); |
| 1214 | 1216 | } |
| 1215 | 1217 | const key_slice = mem.spanZ(key); |
| 1216 | 1218 | const ptr = windows.peb().ProcessParameters.Environment; |
| 1219 | var ascii_match: ?[:0]const u16 = null; |
| 1217 | 1220 | var i: usize = 0; |
| 1218 | 1221 | while (ptr[i] != 0) { |
| 1219 | 1222 | const key_start = i; |
| ... | ... | @@ -1229,9 +1232,20 @@ pub fn getenvW(key: [*:0]const u16) ?[:0]const u16 { |
| 1229 | 1232 | |
| 1230 | 1233 | if (mem.eql(u16, key_slice, this_key)) return this_value; |
| 1231 | 1234 | |
| 1235 | ascii_check: { |
| 1236 | if (ascii_match != null) break :ascii_check; |
| 1237 | if (key_slice.len != this_key.len) break :ascii_check; |
| 1238 | for (key_slice) |a_c, key_index| { |
| 1239 | const a = math.cast(u8, a_c) catch break :ascii_check; |
| 1240 | const b = math.cast(u8, this_key[key_index]) catch break :ascii_check; |
| 1241 | if (std.ascii.toLower(a) != std.ascii.toLower(b)) break :ascii_check; |
| 1242 | } |
| 1243 | ascii_match = this_value; |
| 1244 | } |
| 1245 | |
| 1232 | 1246 | i += 1; // skip over null byte |
| 1233 | 1247 | } |
| 1234 | | return null; |
| 1248 | return ascii_match; |
| 1235 | 1249 | } |
| 1236 | 1250 | |
| 1237 | 1251 | pub const GetCwdError = error{ |
Andrew Kelley <andrew@ziglang.org> 2020-04-02 15:06:50-04:00
Commit is signed but in an unrecognized format.
lib