| Yifan Hong | c49bddf | 2018-09-21 16:39:37 -0700 | [diff] [blame^] | 1 | # |
| 2 | # Copyright (C) 2018 The Android Open Source Project |
| 3 | # |
| 4 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | # you may not use this file except in compliance with the License. |
| 6 | # You may obtain a copy of the License at |
| 7 | # |
| 8 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | # |
| 10 | # Unless required by applicable law or agreed to in writing, software |
| 11 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | # See the License for the specific language governing permissions and |
| 14 | # limitations under the License. |
| 15 | # |
| 16 | |
| 17 | ########################################################### |
| 18 | ## Convert to lower case without requiring a shell, which isn't cacheable. |
| 19 | ## |
| 20 | ## $(1): string |
| 21 | ########################################################### |
| 22 | to-lower=$(subst A,a,$(subst B,b,$(subst C,c,$(subst D,d,$(subst E,e,$(subst F,f,$(subst G,g,$(subst H,h,$(subst I,i,$(subst J,j,$(subst K,k,$(subst L,l,$(subst M,m,$(subst N,n,$(subst O,o,$(subst P,p,$(subst Q,q,$(subst R,r,$(subst S,s,$(subst T,t,$(subst U,u,$(subst V,v,$(subst W,w,$(subst X,x,$(subst Y,y,$(subst Z,z,$1)))))))))))))))))))))))))) |
| 23 | |
| 24 | ########################################################### |
| 25 | ## Convert to upper case without requiring a shell, which isn't cacheable. |
| 26 | ## |
| 27 | ## $(1): string |
| 28 | ########################################################### |
| 29 | to-upper=$(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,$(subst z,Z,$1)))))))))))))))))))))))))) |
| 30 | |
| 31 | # Sanity-check to-lower and to-upper |
| 32 | lower := abcdefghijklmnopqrstuvwxyz-_ |
| 33 | upper := ABCDEFGHIJKLMNOPQRSTUVWXYZ-_ |
| 34 | |
| 35 | ifneq ($(lower),$(call to-lower,$(upper))) |
| 36 | $(error to-lower sanity check failure) |
| 37 | endif |
| 38 | |
| 39 | ifneq ($(upper),$(call to-upper,$(lower))) |
| 40 | $(error to-upper sanity check failure) |
| 41 | endif |
| 42 | |
| 43 | lower := |
| 44 | upper := |