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66 lines
983 B
66 lines
983 B
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/* List a node on a file */ |
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#include "pgenheaders.h" |
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#include "token.h" |
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#include "node.h" |
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/* Forward */ |
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static void list1node(FILE *, node *); |
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static void listnode(FILE *, node *); |
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void |
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PyNode_ListTree(node *n) |
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{ |
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listnode(stdout, n); |
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} |
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static int level, atbol; |
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static void |
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listnode(FILE *fp, node *n) |
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{ |
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level = 0; |
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atbol = 1; |
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list1node(fp, n); |
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} |
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static void |
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list1node(FILE *fp, node *n) |
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{ |
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if (n == 0) |
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return; |
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if (ISNONTERMINAL(TYPE(n))) { |
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int i; |
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for (i = 0; i < NCH(n); i++) |
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list1node(fp, CHILD(n, i)); |
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} |
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else if (ISTERMINAL(TYPE(n))) { |
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switch (TYPE(n)) { |
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case INDENT: |
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++level; |
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break; |
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case DEDENT: |
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--level; |
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break; |
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default: |
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if (atbol) { |
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int i; |
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for (i = 0; i < level; ++i) |
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fprintf(fp, "\t"); |
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atbol = 0; |
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} |
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if (TYPE(n) == NEWLINE) { |
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if (STR(n) != NULL) |
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fprintf(fp, "%s", STR(n)); |
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fprintf(fp, "\n"); |
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atbol = 1; |
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} |
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else |
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fprintf(fp, "%s ", STR(n)); |
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break; |
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} |
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} |
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else |
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fprintf(fp, "? "); |
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}
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