88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
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/*
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* DO NOT MODIFY THE CONTENTS OF THIS FILE.
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* IT WILL BE REPLACED DURING GRADING
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*/
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#ifndef GLOBAL_H
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#define GLOBAL_H
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#include <stdio.h>
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/*
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* Options info, set by validargs.
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* If -h is specified, then the HELP_OPTION bit is set.
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* If -v is specified, then the VALIDATE_OPTION bit is set.
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* If -c is specified, then the CANONICALIZE_OPTION bit is set.
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* If -p is specified, then the PRETTY_PRINT_OPTION bit is set.
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* If PRETTY_PRINT_OPTION is set, then CANONICALIZE_OPTION must also be set.
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* The least-significant byte contains the number of additional spaces
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* to add at the beginning of each output line, for each increase
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* in the indentation level of the value being output.
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*/
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int global_options;
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#define HELP_OPTION (0x80000000)
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#define VALIDATE_OPTION (0x40000000)
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#define CANONICALIZE_OPTION (0x20000000)
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#define PRETTY_PRINT_OPTION (0x10000000)
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/*
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* Variables that keep track of the current amount of input data that has been
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* read. Variable "argo_lines_read" starts at zero and is incremented each time
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* a newline character is read by function argo_read_char(). Variable
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* "argo_chars_read" starts at zero, is reset to zero at the beginning of each
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* line, and is incremented each time a character is read by function argo_read_char().
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* These variables are intended to be used for error messages and debugging.
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* They can be assigned to if it is necessary to reset their values for some reason,
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* such as if reading from multiple sources is done.
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*/
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int argo_lines_read;
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int argo_chars_read;
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/*
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* Variable that keeps track of the current indent level while pretty printing.
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* See the assignment handout for a description of how the indent level is to
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* be maintained and used.
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*/
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int indent_level;
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/*
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* The following array contains statically allocated space for Argo values.
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* You *must* use the elements of this array to store your values.
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* The "argo_next_value" variable contains the index of the next unused slot
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* in the array. As you use the elements of the array, you should increment
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* this value. Pay attention to when all elements are used, so that you don't
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* use a "value" beyond the end of the array and corrupt something else in memory!
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*/
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#define NUM_ARGO_VALUES 100000
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ARGO_VALUE argo_value_storage[NUM_ARGO_VALUES];
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int argo_next_value;
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/*
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* The following array contains storage to hold digits of an integer during
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* output conversion (the digits are naturally generated in the reverse order
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* from which they will be output). You *must* use this array to hold the
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* digits; you may not declare your own arrays!
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*/
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#define ARGO_MAX_DIGITS 10
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ARGO_CHAR argo_digits[ARGO_MAX_DIGITS];
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/*
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* Prototypes for functions that you must implement.
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* For detailed specifications of these functions, refer to the
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* stubs in the file "argo.c", as well as to the assignment handout.
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* Note that you will almost certainly want to implement additional
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* functions besides those specified here.
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*/
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ARGO_VALUE *argo_read_value(FILE *);
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int argo_read_string(ARGO_STRING *s, FILE *);
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int argo_read_number(ARGO_NUMBER *n, FILE *);
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int argo_write_value(ARGO_VALUE *, FILE *);
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int argo_write_string(ARGO_STRING *, FILE *);
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int argo_write_number(ARGO_NUMBER *, FILE *);
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int validargs(int argc, char **argv);
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#endif
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