| 1 | /* |
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| 2 | * Copyright 2017 Sven Verdoolaege |
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| 3 | * |
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| 4 | * Use of this software is governed by the MIT license |
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| 5 | * |
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| 6 | * Written by Sven Verdoolaege. |
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| 7 | */ |
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| 8 | |
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| 9 | #include <isl/stream.h> |
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| 10 | |
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| 11 | #include <isl_list_macro.h> |
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| 12 | |
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| 13 | /* Read a list of elements of type EL from "s". |
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| 14 | * The input format corresponds to the way lists are printed |
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| 15 | * by isl_printer_print_list_*. |
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| 16 | * In particular, the elements are separated by a comma and |
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| 17 | * the entire list is surrounded by parentheses. |
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| 18 | */ |
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| 19 | __isl_give LIST(EL) *FN(isl_stream_read,LIST(EL_BASE))(isl_stream *s) |
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| 20 | { |
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| 21 | isl_ctx *ctx; |
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| 22 | LIST(EL) *list; |
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| 23 | |
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| 24 | if (!s) |
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| 25 | return NULL; |
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| 26 | ctx = isl_stream_get_ctx(s); |
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| 27 | list = FN(LIST(EL),alloc)(ctx, n: 0); |
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| 28 | if (!list) |
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| 29 | return NULL; |
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| 30 | if (isl_stream_eat(s, type: '(') < 0) |
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| 31 | return FN(LIST(EL),free)(list); |
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| 32 | if (isl_stream_eat_if_available(s, type: ')')) |
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| 33 | return list; |
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| 34 | do { |
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| 35 | EL *el; |
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| 36 | |
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| 37 | el = FN(isl_stream_read,EL_BASE)(s); |
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| 38 | list = FN(LIST(EL),add)(list, el); |
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| 39 | if (!list) |
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| 40 | return NULL; |
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| 41 | } while (isl_stream_eat_if_available(s, type: ',')); |
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| 42 | if (isl_stream_eat(s, type: ')') < 0) |
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| 43 | return FN(LIST(EL),free)(list); |
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| 44 | return list; |
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| 45 | } |
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| 46 | |
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| 47 | #undef TYPE_BASE |
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| 48 | #define TYPE_BASE LIST(EL_BASE) |
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| 49 | #include "isl_read_from_str_templ.c" |
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| 50 | |
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