(m)
| 60 | |
| 61 | def resolve_var(name): |
| 62 | def repl(m): |
| 63 | n = m[1] |
| 64 | if n == '$': |
| 65 | return '$' |
| 66 | elif n == '': |
| 67 | # bogus variable reference (e.g. "prefix=$/opt/python") |
| 68 | if keep_unresolved: |
| 69 | return m[0] |
| 70 | raise ValueError |
| 71 | elif n[0] == '(' and n[-1] == ')': |
| 72 | n = n[1:-1] |
| 73 | elif n[0] == '{' and n[-1] == '}': |
| 74 | n = n[1:-1] |
| 75 | |
| 76 | if n in done: |
| 77 | return str(done[n]) |
| 78 | elif n in notdone: |
| 79 | return str(resolve_var(n)) |
| 80 | elif n in os.environ: |
| 81 | # do it like make: fall back to environment |
| 82 | return os.environ[n] |
| 83 | elif n in renamed_variables: |
| 84 | if name.startswith('PY_') and name[3:] in renamed_variables: |
| 85 | return "" |
| 86 | n = 'PY_' + n |
| 87 | if n in notdone: |
| 88 | return str(resolve_var(n)) |
| 89 | else: |
| 90 | assert n not in done |
| 91 | return "" |
| 92 | else: |
| 93 | done[n] = "" |
| 94 | return "" |
| 95 | |
| 96 | assert name not in done |
| 97 | done[name] = "" |
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